A358855 Number of (undirected) cycles in the graph C_5 X C_n.

7298, 132089, 2183490, 34846271, 548520502, 8593998133, 134605124804, 2112734282875, 33277625395316, 526401223244097, 8365394600819118, 133560895142858179, 2142023381577621160, 34497747586243864061, 557716750350292506722, 9047143455744392381123

Offset

3,1

Links

Table of n, a(n) for n=3..18.

Eric Weisstein's World of Mathematics, Graph Cycle

Eric Weisstein's World of Mathematics, Torus Grid Graph

Crossrefs

Cf. A296527, A339074, A339075, A358856.

Cf. A358810, A358853.

Sequence in context: A251226 A260000 A303876 * A031799 A250638 A206080

Adjacent sequences: A358852 A358853 A358854 * A358856 A358857 A358858

Keyword

nonn,hard

Author

Seiichi Manyama, Dec 03 2022

Extensions

a(9)-a(18) from Andrew Howroyd, Jan 28 2023

Status

approved