A068385 Number of groups of order n that are not 2-generated.

0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 5, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 0, 0, 31, 0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 17, 0, 1, 0, 0, 0, 5, 0, 2, 0, 0, 0, 0, 0, 0, 0, 213, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0, 17, 5, 0, 0, 0, 0

Offset

1,16

Links

Eric M. Schmidt, Table of n, a(n) for n = 1..1023

Formula

a(n) = A000001(n) - A066389(n).

Crossrefs

Cf. A000001, A066389.

Sequence in context: A113038 A395353 A082512 * A395862 A318657 A286277

Adjacent sequences: A068382 A068383 A068384 * A068386 A068387 A068388

Keyword

nonn

Author

Yuval Dekel (dekelyuval(AT)hotmail.com), Jun 06 2003

Extensions

More terms from Eric M. Schmidt, May 02 2013

Status

approved