A286124 Number of (undirected) paths in n X n bishop graph.

0, 2, 40, 1564, 497400, 1187052462

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Eric Weisstein's World of Mathematics, Bishop Graph

Eric Weisstein's World of Mathematics, Graph Path

Formula

a(n) = A291997(n) + A291999(n). - Pontus von Brömssen, Nov 22 2020

Crossrefs

Cf. A291997, A291999.

Sequence in context: A304448 A012241 A341589 * A275931 A099707 A198248

Adjacent sequences: A286121 A286122 A286123 * A286125 A286126 A286127

Keyword

nonn,more

Author

Eric W. Weisstein, Jun 15 2017

Extensions

a(6) from Eric W. Weisstein, May 06 2019

Status

approved