August 2007 Archives by subject
Starting: Wed Aug 1 03:06:51 CEST 2007
Ending: Fri Aug 31 19:08:56 CEST 2007
Messages: 89
- 2 questions: kth +integer which is coprime to j
Leroy Quet
- 2 questions: kth +integer which is coprime to j
Stefan Steinerberger
- 2 questions: kth +integer which is coprime to j
hv at crypt.org
- 2 questions: kth +integer which is coprime to j
hv at crypt.org
- [Fwd: coefficients of Moonshine (McKay-Thompson) series]
Jon Awbrey
- [Fwd: coefficients of Moonshine (McKay-Thompson) series]
N. J. A. Sloane
- A006906 question
David Wilson
- A006906 question
David Wilson
- A006906 question
Paul D. Hanna
- A006906 question
Dean Hickerson
- A006906 question
David Wilson
- A061762 a(n) = (sum of digits of n) + (product of digits of n).
zak seidov
- A061762 a(n) = (sum of digits of n) + (product of digits of n).
zak seidov
- A061762 a(n) = (sum of digits of n) + (product of digits of n).
Giovanni Resta
- A061762 a(n) = (sum of digits of n) + (product of digits of n).
N. J. A. Sloane
- A130232: correction
zak seidov
- A130399 : correction
zak seidov
- A130876: k>1
zak seidov
- A130876: k>1: A130876's dead
zak seidov
- A132281
zak seidov
- A conjecture
Vladeta Jovovic
- A conjecture
Max Alekseyev
- Base-10 Skolem-Langford numbers
Eric Angelini
- Base-10 Skolem-Langford numbers
Eric Angelini
- Base-10 Skolem-Langford numbers
Hans Havermann
- Base-10 Skolem-Langford numbers
Dean Hickerson
- Catalan-like array with digits
Eric Angelini
- Catalan-like array with digits
Marc LeBrun
- Catalan-like array with digits
Eric Angelini
- Chestnut
Max Alekseyev
- Compositions into parts with even multiplicities
Vladeta Jovovic
- Concatenate a and b, get c = floor ab/b, concatenate b and c, etc.
Eric Angelini
- Concatenate a and b, get c = floor ab/b, concatenate b and c, etc.
Max Alekseyev
- Conjectured formula for A004081 from Jon Schoenfield
N. J. A. Sloane
- Conjecture in A103200 settled
Rainer Rosenthal
- Conjecture in A103200 settled
N. J. A. Sloane
- Conjecture in A103200 settled
Ralf Stephan
- decode sequence
Gottfried Helms
- decode sequence
Gottfried Helms
- Diophantine equation: x^2 - p*y^2 = -4
Warut Roonguthai
- Extend A131792 ?
Max Alekseyev
- Extend A131792 ?
Martin Fuller
- first child - next sibling
deutsch
- Fw: Extending A053169?
David Wilson
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Paul D. Hanna
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Paul D. Hanna
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Max Alekseyev
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Max Alekseyev
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Paul D. Hanna
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Max Alekseyev
- G.f. for a(n) = C(2n,n)*Sum_{k=0..2n} T(n,k)/C(2n,k) ?
Max Alekseyev
- Little problem
David Wilson
- Little problem
Warut Roonguthai
- Little problem
Mitch Harris
- no updates to OEIS until mid-September
N. J. A. Sloane
- Numbers whose squares start with 4 identical digits, with 5, with 6...
Jonathan Post
- Numbers whose squares start with 4 identical digits, with 5, with 6...
Jonathan Post
- Numbers whose squares start with 4 identical digits, with 5, with 6...
Hans Havermann
- Numbers whose squares start with 4 identical digits, with 5, with 6...
Hans Havermann
- OEIS is back up
N. J. A. Sloane
- Partition into strokes
Max Alekseyev
- Partition into strokes
N. J. A. Sloane
- Permutations
Gordon Royle
- possibly wrong comment with Motzkin numbers
Max Alekseyev
- possibly wrong comment with Motzkin numbers
Joerg Arndt
- Power residue counting
franktaw at netscape.net
- Previous term + quantity of digits
Eric Angelini
- Previous term + quantity of digits
Eric Angelini
- Primes that are sums of eighth powers of two distinct primes.
Jonathan Post
- Primes that are sums of eighth powers of two distinct primes.
Max Alekseyev
- Primes that are sums of eighth powers of two distinct primes.
Jonathan Post
- Primes that are sums of eighth powers of two distinct primes.
Ignacio Larrosa Cañestro
- Primes that are sums of eighth powers of two distinct primes.
Jonathan Post
- Problem concerned with A018819
Vladeta Jovovic
- Problem concerned with A018819
Max Alekseyev
- Problem concerned with A018819
franktaw at netscape.net
- RE : Terms share no digit with their difference (2)
Eric Angelini
- Sequence abundent in primes
Max Alekseyev
- server down [was: Re: G.f. for a(n) = ...]
Joerg Arndt
- Terms share no digit with their difference
Eric Angelini
- Terms share no digit with their difference
Jack Brennen
- Terms share no digit with their difference
hv at crypt.org
- Terms share no digit with their difference (2)
Eric Angelini
- Terms share no digit with their difference (2)
Jack Brennen
- Terms share no digit with their difference (2)
Jack Brennen
- That same
Artur
- Triangle T(n,k) = [x^(k*2^(n-1))] Product_{i=0..n-1} (1 + x^(2^i))^(2^(n-i-1))
Paul D. Hanna
- Triangle T(n,k) = [x^(k*2^(n-1))] Product_{i=0..n-1} (1 + x^(2^i))^(2^(n-i-1))
Max Alekseyev
- Weak Skolem-Langford integers
Eric Angelini
Last message date:
Fri Aug 31 19:08:56 CEST 2007
Archived on: Sun Jan 15 12:28:08 CET 2023
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