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Number of (undirected) cycles in the graph C_5 X C_n.
3

%I #16 Feb 16 2025 08:34:04

%S 7298,132089,2183490,34846271,548520502,8593998133,134605124804,

%T 2112734282875,33277625395316,526401223244097,8365394600819118,

%U 133560895142858179,2142023381577621160,34497747586243864061,557716750350292506722,9047143455744392381123

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

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GraphCycle.html">Graph Cycle</a>

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TorusGridGraph.html">Torus Grid Graph</a>

%Y Cf. A296527, A339074, A339075, A358856.

%Y Cf. A358810, A358853.

%K nonn,hard,changed

%O 3,1

%A _Seiichi Manyama_, Dec 03 2022

%E a(9)-a(18) from _Andrew Howroyd_, Jan 28 2023