A116652 - OEIS

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A116652

Number of connected subgroups of the alternating group A_n.

0, 1, 0, 1, 5, 23, 257, 1048, 27219, 137537, 2725441, 22377824, 1221555748, 7846888669 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,5`
	COMMENTS	`A permutation group is connected if it is not the direct product of smaller permutation groups.`
	LINKS	`N. J. A. Sloane, Transforms`
	FORMULA	`Logarithmic transform of A029725.`
	CROSSREFS	`Labeled version of A116653.` `Sequence in context: A173041 A156187 A156555 * A197936 A198029 A072104` `Adjacent sequences: A116649 A116650 A116651 * A116653 A116654 A116655`
	KEYWORD	`nonn,hard`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Feb 23 2006`

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Last modified February 14 22:37 EST 2012. Contains 205679 sequences.