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A307923
Number of (undirected) Hamiltonian cycles in the n-cocktail party graph.
2
0, 1, 16, 744, 56256, 6385920, 1018114560, 217234805760, 59809766768640, 20651520261980160, 8740913386202726400, 4451168534087349043200, 2685007039858238501683200, 1893459488121880710532300800, 1543515756205349079583241011200, 1440363330182802737753009160192000
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Cocktail Party Graph
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
FORMULA
a(n) = A129348(n)/2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, May 06 2019
STATUS
approved