A109230 Number of indecomposable groups with n conjugacy classes.

0, 1, 2, 3, 8, 6, 12, 14

Offset

1,3

Comments

See A090751 for the definition of indecomposable. The comments there imply that A073043 has Dirichlet generating function prod((1-n^(-s))^(-a(n)),n>=2).

Links

Table of n, a(n) for n=1..8.

Crossrefs

Sequence in context: A321668 A112977 A120390 * A262992 A036970 A110144

Adjacent sequences: A109227 A109228 A109229 * A109231 A109232 A109233

Keyword

more,nonn

Author

Paul Boddington, Aug 19 2005

Status

approved