A290719 Number of (non-null) connected induced subgraphs in the n X n black bishop graph.

1, 3, 22, 168, 5251, 194751, 27478594, 3852814320, 2065546517563

Offset

1,2

Links

Table of n, a(n) for n=1..9.

Eric Weisstein's World of Mathematics, Black Bishop Graph

Eric Weisstein's World of Mathematics, Connected Graph

Eric Weisstein's World of Mathematics, Vertex-Induced Subgraph

Crossrefs

Cf. A289145, A290769.

Sequence in context: A164021 A192365 A074578 * A074576 A077244 A362691

Adjacent sequences: A290716 A290717 A290718 * A290720 A290721 A290722

Keyword

nonn,more

Author

Eric W. Weisstein, Aug 09 2017

Extensions

a(8)-a(9) from Andrew Howroyd, Aug 15 2017

Status

approved