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A116654 Number of atomic species based on even permutation groups that are not substitutions of smaller species. 1
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: A231067 A042327 A046114 * A041020 A041527 A290493

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 October 16 21:10 EDT 2019. Contains 328103 sequences. (Running on oeis4.)