A129582 Number of unlabeled prime graphs with respect to the Cartesian multiplication of graphs with n vertices.

0, 1, 2, 5, 21, 110, 853, 11111, 261077, 11716550, 1006700565, 164059830354, 50335907869219, 29003487462847208, 31397381142761241918, 63969560113225176165145, 245871831682084026519528568

Offset

1,3

Links

Table of n, a(n) for n=1..17.

Ji Li, Prime graphs and Exponential Composition of Species, arXiv:0705.0038

Ji Li, Prime graphs and exponential composition of species, J. Combin. Theory A 115 (2008) 1374-1401

Crossrefs

Cf. A001349, A125024.

Sequence in context: A370656 A357919 A020129 * A152576 A328286 A078480

Adjacent sequences: A129579 A129580 A129581 * A129583 A129584 A129585

Keyword

nonn

Author

Ji Li (vieplivee(AT)hotmail.com), May 04 2007

Status

approved