A218962 Total number of maximal abelian subgroups of the alternating group, counting conjugates as distinct.

1, 1, 1, 1, 5, 21, 121, 771, 5281, 53065, 373261, 3729991, 38817241, 484009241

Offset

0,5

Links

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

Liam Naughton and Goetz 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, CountingSubgroups.g

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

Crossrefs

Sequence in context: A015558 A168598 A002711 * A124311 A353736 A208593

Adjacent sequences: A218959 A218960 A218961 * A218963 A218964 A218965

Keyword

nonn,more

Author

Liam Naughton, Nov 23 2012

Extensions

a(3)-a(13) corrected by Liam Naughton, Jul 17 2018

Status

approved