A116654 - OEIS

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A116654

Number of atomic species based on even permutation groups that are not substitutions of smaller species.

0, 1, 0, 1, 3, 4, 11, 15, 84, 59, 139, 168, 1232, 1079 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,5`
	LINKS	`Table of n, a(n) for n=0..13.`
	FORMULA	`Define b(n), c(n): b(1)=c(0)=0. b(k)=a(k), k>1. c(k)=A029726(k), k>0. A116653(n) is Dirichlet convolution of b and c.`
	CROSSREFS	`Sequence in context: A042709 A042327 A046114 * A041020 A041527 A001641` `Adjacent sequences: A116651 A116652 A116653 * A116655 A116656 A116657`
	KEYWORD	`nonn,hard`
	AUTHOR	`Christian G. Bower, Feb 23 2006`
	STATUS	`approved`

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Last modified May 18 18:50 EDT 2013. Contains 225423 sequences.