February 2008 Archives by author
Starting: Fri Feb 1 01:50:32 CET 2008
Ending: Fri Feb 29 22:08:35 CET 2008
Messages: 161
- A005245 conjecture
Max Alekseyev
- Tower of Hanoi with random moves
Max Alekseyev
- update to A120626: least number k such that the k-th Catalan number C(2k,k)/(k+1) is divisible by n!
Max Alekseyev
- update to A120626: least number k such that the k-th Catalan number C(2k,k)/(k+1) is divisible by n!
Max Alekseyev
- PARI/GP scripts for miscellaneous math problems
Max Alekseyev
- PARI/GP scripts for miscellaneous math problems
Max Alekseyev
- update to A124350: Numbers of Hamiltonian paths on the n-prism graph.
Max Alekseyev
- bags and coins: hard sequences?
Max Alekseyev
- update to A124350: Numbers of Hamiltonian paths on the n-prism graph.
Max Alekseyev
- update to A094047: arrangements of n couples
Max Alekseyev
- update to A094047: arrangements of n couples
Max Alekseyev
- sum of digits of n^3 is 8: more terms?
Max Alekseyev
- sum of digits of n^3 is 8: more terms?
Max Alekseyev
- number of normal bases
Max Alekseyev
- Two sequences with sod: more terms?
Max Alekseyev
- Enumerating alcohols and other classes of chemical molecules
Max Alekseyev
- earliest string to reprsent 00 ... 99
Max Alekseyev
- Sums payable by exactly n banknotes.
Max Alekseyev
- Sums payable by exactly n banknotes.
Max Alekseyev
- A068625 / A048803
Max Alekseyev
- Sums payable with change
Max Alekseyev
- Lines in regular polygon
Max Alekseyev
- Seeking help in conducting calculations
Max Alekseyev
- Not sum od three perfect primes: is the sequence infinite
Max Alekseyev
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
Max Alekseyev
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
Max Alekseyev
- Q: Catalan's A000108 modulo 4 are A073267?
Max Alekseyev
- Number of positive solutions of the Diophantine x*p+y*q=(p+q)^3,
Max Alekseyev
- Number of positive solutions of the Diophantine x*p+y*q=(p+q)^3,
Max Alekseyev
- PrimePi(10^23): A006880 and MathWorld disagreement
Max Alekseyev
- number of normal bases
Joerg Arndt
- number of normal bases
Joerg Arndt
- earliest string to reprsent 00 ... 99
Joerg Arndt
- suggestion for "submitting comment" -machinery
Joerg Arndt
- bug in A107755
Artur
- Articles @ PlanetMath
Jon Awbrey
- A135137 to coin a phrase ... and then cash in
Jon Awbrey
- A011974 : Is 2 the sum of 2 successive primes?
Bernardo Boncompagni
- what defines A113495?
Jack Brennen
- Q. about triangle A106239 (graphs with unicyclic components)
Gabriel Cunningham
- A005245 conjecture
Martin Fuller
- Tower of Hanoi with random moves
Martin Fuller
- Up/Down-Symmetric Permutations
Olivier Gerard
- Sorry for this
Olivier Gerard
- Two sequences with sod: more terms?
Richard Guy
- Two or three more sequences??
Richard Guy
- {Spam?} Re: Two or three more sequences?? (fwd)
Richard Guy
- Distribution of perfect powers: parabolic sections
Richard Guy
- PrimePi(10^23): A006880 and MathWorld disagreement
Richard Guy
- PrimePi(10^23): A006880 and MathWorld disagreement
Richard Guy
- Self Power Numbers - Unfinished business!
Maximilian Hasler
- Tower of Hanoi with random moves
Maximilian Hasler
- New topic: duplication of substrings
Maximilian Hasler
- update to A094047: arrangements of n couples
Maximilian Hasler
- update to A094047: arrangements of n couples
Maximilian Hasler
- Two or three more sequences??
Maximilian Hasler
- A135137: missed terms(?)
Maximilian Hasler
- Sums payable by exactly n banknotes.
Maximilian Hasler
- A015052 - A015053
Maximilian Hasler
- A068625 / A048803
Maximilian Hasler
- A068625 / A048803
Maximilian Hasler
- A068625 / A048803
Maximilian Hasler
- Q. about triangle A106239 (graphs with unicyclic components)
Maximilian Hasler
- EDITED A107755
Maximilian Hasler
- EDITED A107755 (improved)
Maximilian Hasler
- PrimePi(10^23): A006880 and MathWorld disagreement
Maximilian Hasler
- A135485 and primes (and emirps) in A135485; New Prime Curio about 15013 by Post
Hans Havermann
- A011974 : Is 2 the sum of 2 successive primes?
Robert Israel
- Sums payable with change
Robert Israel
- Self Power Numbers - Unfinished business!
Charles Marion
- PARI/GP scripts for miscellaneous math problems
Richard Mathar
- Two sequences with sod: more terms?
Richard Mathar
- Re^2: Two or three more sequences??
Richard Mathar
- Enumerating alcohols and other classes of chemical molecules
Richard Mathar
- A135045: missed terms(?)
Richard Mathar
- A135045: missed terms(?)
Richard Mathar
- what defines A113495?
Richard Mathar
- what defines A113495?
Richard Mathar
- bug in A107755
Richard Mathar
- A053789 Smallest prime divisor of sum of first k primes for nonprime k (?)
Richard Mathar
- A097101-3: insert n^2 and divide by 5(?)
Richard Mathar
- m=p^2+q^2, (p<q primes): number of presentations
Richard Mathar
- A096394 (Engel expansion) correct?
Richard Mathar
- Two sequences with sod: more terms?
Graeme McRae
- Two or three more sequences??
Graeme McRae
- Integer "observables"
Andrew Plewe
- Self Power Numbers - Unfinished business!
Jonathan Post
- Two sequences with sod: more terms?
Jonathan Post
- Two sequences with sod: more terms?
Jonathan Post
- Sorry for this
Jonathan Post
- A135015, and New Prime Curio about 111253 by Post
Jonathan Post
- A135485 and primes (and emirps) in A135485; New Prime Curio about 15013 by Post
Jonathan Post
- A135137: missed terms(?)
Jonathan Post
- A135137 to coin a phrase ... and then cash in
Jonathan Post
- A011974 : Is 2 the sum of 2 successive primes?
Jonathan Post
- never received OEIS server autoreplies from past 2 submissions
Jonathan Post
- Self Power Numbers - Unfinished business!
Alexander Povolotsky
- Self Power Numbers - Unfinished business!
Alexander Povolotsky
- A011974 : Is 2 the sum of 2 successive primes?
Alexander Povolotsky
- Seeking help in conducting calculations
Alexander Povolotsky
- Seeking help in conducting calculations
Alexander Povolotsky
- Seeking help in conducting calculations
Alexander Povolotsky
- Seeking help in conducting calculations
Alexander Povolotsky
- Up/Down-Symmetric Permutations
Leroy Quet
- Matching first n signs of differences between consecutive terms
Leroy Quet
- Matching first n signs of differences between consecutive terms
Leroy Quet
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
Giovanni Resta
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
Giovanni Resta
- Not sum of 3 perfect primes greater than 1
Giovanni Resta
- Tower of Hanoi with random moves
N. J. A. Sloane
- the OEIS machine seems to be down
N. J. A. Sloane
- Self Power Numbers - Unfinished business!
N. J. A. Sloane
- Self-power number sequences
N. J. A. Sloane
- the OEIS is working again
N. J. A. Sloane
- New topic: duplication of substrings
N. J. A. Sloane
- earliest string to reprsent 00 ... 99
N. J. A. Sloane
- trivial more terms
N. J. A. Sloane
- Enumerating alcohols and other classes of chemical molecules
N. J. A. Sloane
- %C A135132 695 is only a probable prime(?)
N. J. A. Sloane
- never received OEIS server autoreplies from past 2 submissions
N. J. A. Sloane
- A011974 : Is 2 the sum of 2 successive primes?
N. J. A. Sloane
- Q. about triangle A106239 (graphs with unicyclic components)
N. J. A. Sloane
- Number of positive solutions of the Diophantine x*p+y*q=(p+q)^3,
Jacques Tramu
- trivial more terms
Olaf Voß
- Ok, so it's not a sequence
Andrew Weimholt
- F26 in UPINT
David Wilson
- A005245 conjecture
David Wilson
- Sorry for this
David Wilson
- Sums payable by exactly n banknotes.
David Wilson
- A005245 conjecture
David W. Wilson
- Ok, so it's not a sequence
David W. Wilson
- Sums payable by exactly n banknotes.
Joshua Zucker
- A096394 (Engel expansion) correct?
Joshua Zucker
- Two sequences with sod: more terms?
hv at crypt.org
- Lines in regular polygon
franktaw at netscape.net
- Distribution of perfect powers: parabolic sections
franktaw at netscape.net
- Number of positive solutions of the Diophantine x*p+y*q=(p+q)^3,
franktaw at netscape.net
- Two sequences with sod: more terms?
zak seidov
- sum of digits of n^3 is 8: more terms?
zak seidov
- Recent.txt 1,15 MB
zak seidov
- A135137: missed terms(?)
zak seidov
- %C A135132 695 is only a probable prime(?)
zak seidov
- %F A135057 A135057(n)=100^n/4-(A124049(n))^2
zak seidov
- A135045: missed terms(?)
zak seidov
- A082287: A001221(1)=0 hence 1'd be absent in A082287 ?!
zak seidov
- Sums payable by exactly n banknotes.
zak seidov
- A011974 : Is 2 the sum of 2 successive primes?
zak seidov
- A011974 : Is 2 the sum of 2 successive primes?
zak seidov
- Subject: NEW SEQUENCE FROM Zak Seidov
zak seidov
- New Sequence(s)? (was: what defines A113495? )
zak seidov
- Distribution of perfect powers: parabolic sections
zak seidov
- Distribution of perfect powers: parabolic sections
zak seidov
- Distribution of perfect powers: parabolic sections
zak seidov
- Not sum od three perfect primes: is the sequence infinite
zak seidov
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
zak seidov
- Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs
zak seidov
- A053789 Smallest prime divisor of sum of first k primes for nonprime k (?)
zak seidov
- A097101-3: insert n^2 and divide by 5(?)
zak seidov
- m=p^2+q^2, (p<q primes): number of presentations
zak seidov
- m=p^2+q^2, (p<q primes): number of presentations
zak seidov
- Q. about triangle A106239 (graphs with unicyclic components)
webonfim
Last message date:
Fri Feb 29 22:08:35 CET 2008
Archived on: Sun Jan 15 12:28:12 CET 2023
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