December 2007 Archives by thread
Starting: Sat Dec 1 00:05:51 CET 2007
Ending: Mon Dec 31 15:16:33 CET 2007
Messages: 210
- Any updates to A007828?
N. J. A. Sloane
- To extend A018216 Maximal number of subgroups in a group with n elements
Christian G. Bower
- Please only submit really important sequences!
N. J. A. Sloane
- A131519
koh
- A126200 more,nonn,uned,obsc
Dean Hickerson
- several OEIS items, Dec 02 2007
N. J. A. Sloane
- Rhyming digits
Eric Angelini
- Next Problem
Artur
- EDITED A000926 (Re: Duplicate hunting cont.)
Maximilian Hasler
- Partitions Based On Permutations
Leroy Quet
- Conway-Sloane Powertrain, other than in base 10
Jonathan Post
- Question about a function: floor(x/ln(x))
Andrew Plewe
- Abundant numbers of form n^a+n+1
Dean Hickerson
- Enumerating Terry Tao's "parallelograms of primes"
Jonathan Post
- A109094 maximum salesman path in K_n
Richard Mathar
- Travelling salesman problem
Artur
- The "commas" sequence revisited
Eric Angelini
- [Fwd: SEQ+# A135929 FROM Artur Jasinski]
Artur
- [Fwd: Re: [Fwd: SEQ+# A135929 FROM Artur Jasinski]]
Artur
- Re^2: Abundant numbers of form n^a+n+1
Richard Mathar
- Abundant numbers of form n^2+n+1
Jack Brennen
- primes that never divide 2^k+1
Maximilian Hasler
- EDITED A014663
Maximilian Hasler
- Ternary analogue of A094913?
Jonathan Post
- More numbers like 5906 (Terms of A060387 not in A003336)
all at abouthugo.de
- Answering njas: definition of POLYPON
Jonathan Post
- %C A068690: 2 is not compatible with {3,5,7}.
zak seidov
- Permutations/ Same Sequence Of Signs As Inverses
Leroy Quet
- Please Help Me!!!
Lekraj Beedassy
- a property of multisets: unit fractions with a twist
hv at crypt.org
- increasing comma sequences of positive integers
Olivier Gerard
- Most "compact" sequence such that there is at least one prime between a(n) and a(n+1)
Andrew Plewe
- Oops again on A094638 from Tom Copeland
N. J. A. Sloane
- About the page "Hints for Using OEIS"
Giovanni Resta
- corrected / extended b-files for record prime gaps
Maximilian Hasler
- PARI/GP code for sequence transforms
Christian G. Bower
- A109094 and A131709
koh
- A103651 is a WRONG version of A068318
zak seidov
- Help find reference
Charles Marion
- Right and left factorials
Thomas Copeland
- A094913 extension
David W. Wilson
- Sequences Of Mystery
Leroy Quet
- Different patterns in Sn modulo 2, is it A001405?
franktaw at netscape.net
- HELP! A038207 analogue
lajos66 at t-online.hu
- COMMENT M. Hasler A079559
Maximilian Hasler
- Fixed points
koh
- Problems with A000028/A000379.
David Wilson
- re A000028 and A000379
N. J. A. Sloane
- Recommendations for A000028 and A000379
David Wilson
- New sequences related to A000028/A000379
David W. Wilson
- First semiprime gaps without primes
zak seidov
- First prime gaps without semiprimes
zak seidov
- NEW SEQUENCE: Semiprime gaps without primes
zak seidov
- A133450: correction, more terms, Mmca
zak seidov
- Sum of a nonzero pentagonal number and a nonzero square in at least one way
Jonathan Post
- First prime gaps without semiprimes (updated2)
zak seidov
- Truncatable (left and right side; any number of truncated digits allowed) decimal primes,whose sum of digits is square
Alexander Povolotsky
- Conjecture: 29 is largest integer <> h-gonal(i) + j-gonal(k), h, i, j, k >2
Jonathan Post
- A000033
David W. Wilson
- A005119 Computation of Infinitesimal Generator
pauldhanna at juno.com
- A000426 recurrence
David W. Wilson
- Document to peruse
David W. Wilson
- What are the PARI/GP alternatives to contfrac() ?
Alexander Povolotsky
- G.f. for C(q^n,n)?
pauldhanna at juno.com
- Notation A/B/C
N. J. A. Sloane
- d x e = r and now concatenate e and r
Eric Angelini
Last message date:
Mon Dec 31 15:16:33 CET 2007
Archived on: Sun Jan 15 12:28:10 CET 2023
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