A358869 Number of (undirected) paths in the graph C_5 X C_n.

6690, 324570, 10489660, 276182500, 6486444750, 141606011050, 2938679135800, 58759814756160, 1142125726154350, 21713533582158110, 405578743418707380, 7468021173224848600, 135906384557097211050, 2449354951706961634050, 43785800216111451354800, 777390470051273329332440, 13722022446524862502553730

Offset

2,1

Links

Ed Wynn, Table of n, a(n) for n = 2..50

Eric Weisstein's World of Mathematics, Graph Path

Eric Weisstein's World of Mathematics, Torus Grid Graph

Crossrefs

Cf. A307919, A339795, A339796, A358872.

Cf. A358810, A358853, A358855, A358868.

Sequence in context: A345601 A345860 A206008 * A031846 A289516 A239565

Adjacent sequences: A358866 A358867 A358868 * A358870 A358871 A358872

Keyword

nonn

Author

Seiichi Manyama, Dec 03 2022

Extensions

a(8)-a(18) from Andrew Howroyd, Jan 28 2023

a(2) prepended by Ed Wynn, Jul 07 2023

Status

approved