

A140987


Number of groups of order F(n).


3



1, 1, 1, 1, 1, 5, 1, 2, 2, 2, 1, 197, 1, 1, 6, 2, 1, 41, 1, 7, 4, 1, 1
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OFFSET

1,6


LINKS

Table of n, a(n) for n=1..23.
GAP package GrpConst


FORMULA

a(n) = A000001(A000045(n)).


EXAMPLE

a(6) = 5 because Fibonacci number F(6) = 8 and there are 5 groups of order 8.


CROSSREFS

Cf. A000001, A000040, A000045, A001358, A001605, A072381.
Sequence in context: A260821 A068115 A068139 * A097562 A275889 A046771
Adjacent sequences: A140984 A140985 A140986 * A140988 A140989 A140990


KEYWORD

nonn,more


AUTHOR

Jonathan Vos Post, Jul 28 2008


EXTENSIONS

Entries through a(17) checked by N. J. A. Sloane, Aug 01 2008
a(18)a(23) from Eric M. Schmidt, Jun 19 2014


STATUS

approved



