A306283 Number of (undirected) Hamiltonian paths on the 7 X n knight graph.

0, 0, 52, 6378, 622868, 389969466, 82787609160, 20666425060328, 2903212163753000, 1025241126020698238

Offset

1,3

Links

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

Eric Weisstein's World of Mathematics, Hamiltonian Path.

Eric Weisstein's World of Mathematics, Knight Graph.

Crossrefs

Cf. A169696 (3 X n), A079137 (4 X n), A083386 (5 X n), A306281 (6 X n), this sequence (7 X n).

Sequence in context: A029809 A200576 A295450 * A219565 A294507 A209500

Adjacent sequences: A306280 A306281 A306282 * A306284 A306285 A306286

Keyword

nonn,more

Author

Seiichi Manyama, Feb 03 2019

Extensions

a(8)-a(10) from Valentin Gubarev, Dec 23 2024

Status

approved