A116653 - OEIS

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A116653

Number of connected even permutation groups; conjugacy classes of connected subgroups of the alternating group A_n; atomic species based on even permutation groups.

0, 1, 0, 1, 3, 4, 12, 15, 87, 61, 143, 168, 1254, 1079 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,5`
	LINKS	`N. J. A. Sloane, Transforms`
	FORMULA	`Inverse Euler transform of A029726. Define b(n), c(n): b(1)=c(0)=0. b(k)=A116654(k), k>1. c(k)=A029726(k), k>0. a(n) is Dirichlet convolution of b and c.`
	CROSSREFS	`Unlabeled version of A116652.` `Sequence in context: A070287 A124637 A047173 * A122757 A084221 A142866` `Adjacent sequences: A116650 A116651 A116652 * A116654 A116655 A116656`
	KEYWORD	`nonn,hard`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Feb 23 2006`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.