A358856 Number of (undirected) cycles in the graph C_6 X C_n.

35205, 1165194, 34846271, 995818716, 27888940001, 773821636750, 21378607696815, 589724385779004, 16270311004670729, 449476421435825046, 12442365158796491483, 345293706994488530008, 9609116953522118190009, 268189777386676703675238, 7507073356371047897526119, 210735605847160867677182616

Offset: 3

Author

Seiichi Manyama, Dec 03 2022

Keywords

• nonn
• hard

Links

• Eric Weisstein's World of Mathematics, Graph Cycle
• Eric Weisstein's World of Mathematics, Torus Grid Graph

Crossrefs

Cf. A296527, A339074, A339075, A358855.

Cf. A358811.

Extensions

a(7)-a(18) from Andrew Howroyd, Jan 28 2023