A083280 Number of 2-generator non-Abelian groups of order n.

0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 6, 0, 2, 0, 3, 1, 1, 0, 11, 0, 1, 2, 2, 0, 3, 0, 17, 0, 1, 0, 8, 0, 1, 1, 10, 0, 5, 0, 2, 0, 1, 0, 32, 0, 2, 0, 3, 0, 8, 1, 9, 1, 1, 0, 11, 0, 1, 2, 50, 0, 3, 0, 3, 0, 3, 0, 33, 0, 1, 1, 2, 0, 5, 0, 32, 7, 1, 0, 13

Offset

1,8

Links

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

Formula

a(n) = A066389(n) - A046951(n).

Crossrefs

Cf. A066389, A046951.

Sequence in context: A321252 A225345 A335427 * A060689 A053119 A162515

Adjacent sequences: A083277 A083278 A083279 * A083281 A083282 A083283

Keyword

nonn

Author

Yuval Dekel (dekelyuval(AT)hotmail.com), Jun 02 2003

Extensions

More terms from Eric M. Schmidt, May 05 2013

Status

approved