A google sequence

[Olivier Gerard]

http://googleblog.blogspot.com/2008/07/what-comes-next-in-this-series-13-33-53.html




ftaw> From seqfan-owner at ext.jussieu.fr  Sun Jul  6 02:19:05 2008
ftaw> To: seqfan at ext.jussieu.fr
ftaw> Subject: Partitions invariant under a permutation
ftaw> Date: Sat, 05 Jul 2008 20:18:29 -0400
ftaw> From: franktaw at netscape.net
ftaw> ...
ftaw> (Note that when k is prime, this matches certain sequences in the
ftaw> database with the title of "Sorting Numbers" with no further 
ftaw> explanation:
ftaw> A002872, A002874, A0036075, A0036077, ....  There is a reference to
ftaw> an article by Motzkin in these, but I don't have ready access to this.  
ftaw> ...

See
http://www.strw.leidenuniv.nl/~mathar/progs/Motzkin1971AMS0001.png
http://www.strw.leidenuniv.nl/~mathar/progs/Motzkin1971AMS0002.png
...
http://www.strw.leidenuniv.nl/~mathar/progs/Motzkin1971AMS0006.png

Note ref [11] on the last page...  Richard