A341501 Number of cycles in the 3 X n rook graph.

1, 14, 312, 13945, 1241696, 196846257, 50828091505, 20024754905438, 11449549613245851, 9132012077055635872, 9838890888977921645318, 13943876645976749962479951, 25420022651057340998037064594, 58486800791746378910741227427387

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..30

Crossrefs

Column 3 of A286418.

Sequence in context: A250966 A213466 A303488 * A255857 A239782 A294040

Adjacent sequences: A341498 A341499 A341500 * A341502 A341503 A341504

Keyword

nonn

Author

Andrew Howroyd, Feb 21 2021

Status

approved