A243564 Number of simple connected graphs with n nodes that are integral and have no subgraph isomorphic to diamond graph.

1, 1, 1, 1, 1, 4, 3, 3, 2, 18

Offset

1,6

Links

Table of n, a(n) for n=1..10.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs

Crossrefs

Cf. A242790 (diamond free graphs), A064731 (integral graphs).

Sequence in context: A305743 A117691 A375311 * A358329 A171627 A239884

Adjacent sequences: A243561 A243562 A243563 * A243565 A243566 A243567

Keyword

nonn,more

Author

Travis Hoppe and Anna Petrone, Jun 06 2014

Status

approved