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A218909 Number of conjugacy classes of abelian subgroups of the symmetric group. 0
1, 1, 2, 3, 7, 9, 20, 26, 61, 82, 180, 236, 594, 762 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..13.

Liam Naughton, CountingSubgroups.g

L. Naughton and G. Pfeiffer, Integer sequences realized by the subgroup pattern of the symmetric group, arXiv:1211.1911 and J. Int. Seq. 16 (2013) #13.5.8

Liam Naughton and Goetz Pfeiffer, Tomlib, The GAP table of marks library,

PROG

(GAP) List(ConjugacyClassesSubgroups(G), x->IsAbelian(Representative(x)));

CROSSREFS

Sequence in context: A291740 A204520 A007649 * A225202 A046152 A057239

Adjacent sequences:  A218906 A218907 A218908 * A218910 A218911 A218912

KEYWORD

nonn,more

AUTHOR

Liam Naughton, Nov 09 2012

STATUS

approved

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Last modified June 12 14:45 EDT 2021. Contains 344957 sequences. (Running on oeis4.)