A295170 Chromatic invariant of the n X n black bishop graph.

1, 1, 0, 8, 3528, 18475776, 5885188704000

Offset

1,4

Links

Table of n, a(n) for n=1..7.

Eric Weisstein's World of Mathematics, Black Bishop Graph

Eric Weisstein's World of Mathematics, Chromatic Invariant

Crossrefs

Cf. A295217.

Sequence in context: A299727 A046250 A318067 * A087925 A125540 A221109

Adjacent sequences: A295167 A295168 A295169 * A295171 A295172 A295173

Keyword

nonn,more

Author

Eric W. Weisstein, Nov 16 2017

Extensions

a(7) from Andrew Howroyd, Apr 23 2018

Status

approved