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1–14 of 14
Discussions and support related to computing integer sequences.
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L. Edson Jeffery
1/25/14
Tough enumeration problem from the theory of tiles.
Hello, Are there any tiling theorists out there? I recently submitted to OEIS the irregular array
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Tough enumeration problem from the theory of tiles.
Hello, Are there any tiling theorists out there? I recently submitted to OEIS the irregular array
1/25/14
Ed Jeffery
,
susanne.wienand
5
2/23/13
Help with theory regarding new sequences.
Hello Ed, Hopefully this is what you are looking for: k^2 - k(2M+1) + 2n = 0 k1 = 1/2 * [(2M+1) -
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Help with theory regarding new sequences.
Hello Ed, Hopefully this is what you are looking for: k^2 - k(2M+1) + 2n = 0 k1 = 1/2 * [(2M+1) -
2/23/13
Peter Luschny
, …
seqcomp
19
8/10/12
An extension of the Jacobi symbol.
[Dear George, please post in the group, not to the owner of the group.] From George Beck: The
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An extension of the Jacobi symbol.
[Dear George, please post in the group, not to the owner of the group.] From George Beck: The
8/10/12
Peter Luschny
,
Neil Sloane
3
4/10/12
Ludwig Seidel's remarkable algorithm
> Peter, May I draw your attention to the paper that Jessica Millar, > Neal Young and I wrote
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Ludwig Seidel's remarkable algorithm
> Peter, May I draw your attention to the paper that Jessica Millar, > Neal Young and I wrote
4/10/12
Peter Luschny
, …
Paul D. Hanna
13
3/11/12
A little challenge.
Thanks to all which took up this little challenge. The sequence number is A209631. Please add your
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A little challenge.
Thanks to all which took up this little challenge. The sequence number is A209631. Please add your
3/11/12
Peter Luschny
, …
Enrique Pérez Herrero
25
2/13/12
Is the A123706 triangle an extension of the Moebius function?
Peter: Have a nice vacation! There is an arithmetical function I call "Squarefreeness Index
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Is the A123706 triangle an extension of the Moebius function?
Peter: Have a nice vacation! There is an arithmetical function I call "Squarefreeness Index
2/13/12
Peter Luschny
, …
George Beck
65
1/26/11
A good algorithm for A094348?
That remark about d(n) was very silly (it's completely obvious)--sorry! - George
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A good algorithm for A094348?
That remark about d(n) was very silly (it's completely obvious)--sorry! - George
1/26/11
Peter Luschny
, …
Psychedelic Geometry
5
1/12/11
Help for seq-comp starters
> Psychedelic Geometry wrote: > a) PARI/GP it is the best option if you intend to do a
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Help for seq-comp starters
> Psychedelic Geometry wrote: > a) PARI/GP it is the best option if you intend to do a
1/12/11
George Beck
,
Peter Luschny
3
12/18/10
double enumeration
> A similar double enumeration, perhaps even simpler, is: Take > a tree, then enumerate one
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double enumeration
> A similar double enumeration, perhaps even simpler, is: Take > a tree, then enumerate one
12/18/10
Peter Luschny
3
12/18/10
Restricted growth strings
> When I found out how to convert rg-strings to 'real' set partitions I > may be able
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Restricted growth strings
> When I found out how to convert rg-strings to 'real' set partitions I > may be able
12/18/10
Peter Luschny
, …
M. Hasler
5
11/30/10
Generic common format for function calls
Hello there, > I just noticed a small inconvenience with Richard's conventions. > When you
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Generic common format for function calls
Hello there, > I just noticed a small inconvenience with Richard's conventions. > When you
11/30/10
Psychedelic Geometry
,
Peter Luschny
2
11/30/10
OEIS Utilities
Hi Enrique, > I intend to built the same funcionalities within my Mathematica > Package but
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OEIS Utilities
Hi Enrique, > I intend to built the same funcionalities within my Mathematica > Package but
11/30/10
Peter Luschny
,
Psychedelic Geometry
3
11/23/10
Welcome
On 23 Nov., 20:15, Psychedelic Geometry wrote: > At the momment I´m trying to repair my
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Welcome
On 23 Nov., 20:15, Psychedelic Geometry wrote: > At the momment I´m trying to repair my
11/23/10
Peter Luschny
11/23/10
Looking for Top-Coders to advance A103294 and A004137
A great part of these sequences have its origin in a long and vivid discussion on the German Usenet (
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Looking for Top-Coders to advance A103294 and A004137
A great part of these sequences have its origin in a long and vivid discussion on the German Usenet (
11/23/10