Re: factorial sequence proposal

Am 12.05.2008 22:27 schrieb wugi:

That's why I spoke of a parametred family, or one with a seed n...
Surely there must be a lot of those, how does (or not) OEIS treat them?

You may begin to write you number as a matrix, and then
build the sequence of anti-diagonals.
(With triangular matrices you may add the sequence by
writing the values row/column-wise depending on
havinga lower of upper diagonal matrix)

Gottfried

--
---

Gottfried Helms, Kassel
.

Relevant Pages

  • Re: problem with a necklace sequence
    ... context was completely unrelated to the one that appears in the OEIS. ... "Number of aperiodic bracelets (or necklaces) with n red or blue beads ... indeed get the same numbers as in the OEIS sequence. ...
    (sci.math)
  • Re: Why are some constants not recognized where others of less importance are?
    ... >> sequence in the OEIS, one reason being that the sequence is ... > included simply because the ability to look them up is useful, and the OEIS ... I agree that being able to look them up is useful; I just disagree ... you are not making reference to pi or to decimal expansion. ...
    (sci.math)
  • Re: problem with a necklace sequence
    ... context was completely unrelated to the one that appears in the OEIS. ... "Number of aperiodic bracelets with n red or blue beads ... The sequence starts: ... For red and blue to switch roles there must be the same number of each, ...
    (sci.math)
  • Re: How many finite groups?
    ... Jason Pawloski wrote: ... involved counting subgroups or some such thing, ... And the sequence in the OEIS which counts the number of groups of order ... it was not a random sequence of digits. ...
    (sci.math)
  • Re: Diophantine approximation or something?
    ... > OEIS A001653 where one finds a lot of information. ... This sequence ... > such that ais a square. ... Nice to know they were still publishing math in occupied Norway. ...
    (sci.math)