A140987 Number of groups of order F(n).

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

Offset: 1

Author

Jonathan Vos Post, Jul 28 2008

Keywords

• nonn
• more

Examples

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

Links

• GAP package GrpConst

Crossrefs

Cf. A000001, A000040, A000045, A001358, A001605, A072381.

Formula

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

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