A243561 Number of simple connected graphs with n nodes that are distance regular and have no subgraph isomorphic to diamond graph.

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

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), A241814 (distance regular graphs).

Sequence in context: A375797 A318730 A259974 * A135550 A035491 A318574

Adjacent sequences: A243558 A243559 A243560 * A243562 A243563 A243564

Keyword

nonn,more

Author

Travis Hoppe and Anna Petrone, Jun 06 2014

Status

approved