A241840 Number of simple connected graphs on n nodes that are not distance-regular.

0, 0, 1, 4, 19, 108, 851, 11112, 261076, 11716564

Offset: 1

Author

Travis Hoppe and Anna Petrone, Apr 29 2014

Keywords

• nonn
• less
• more

Links

• Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
• Travis Hoppe and Anna Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644 [math.CO], 2014.
• Eric Weisstein's World of Mathematics, Distance-Regular Graph

Crossrefs

Cf. A001349, A241814.

Formula

a(n) = A001349(n) - A241814(n).