A241708 Number of simple connected graphs on n nodes with diameter 4.

0, 0, 0, 0, 1, 8, 82, 1027, 19320, 598913

Offset

1,6

Links

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

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, Graph Diameter

Crossrefs

Column k=4 of A294522.

Cf. simple connected graph of diameter k A241706, A241707, A241708, A241709, A241710.

Sequence in context: A356829 A358600 A163191 * A317119 A285455 A068173

Adjacent sequences: A241705 A241706 A241707 * A241709 A241710 A241711

Keyword

nonn,hard,more

Author

Travis Hoppe and Anna Petrone, Apr 27 2014

Status

approved