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A116652
Number of connected subgroups of the alternating group A_n.
3
0, 1, 0, 1, 5, 23, 257, 1048, 27219, 137537, 2725441, 22377824, 1221555748, 7846888669, 406966068706, 5178802915485, 417065722270965, 3785224363874273
OFFSET
0,5
COMMENTS
A permutation group is connected if it is not the direct product of smaller permutation groups.
LINKS
FORMULA
Logarithmic transform of A029725.
CROSSREFS
Labeled version of A116653.
Sequence in context: A323993 A156555 A361403 * A361362 A197936 A198029
KEYWORD
nonn,hard
AUTHOR
Christian G. Bower, Feb 23 2006
EXTENSIONS
a(14)-a(17) from Vaclav Kotesovec, Jul 21 2022
STATUS
approved