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A307902
Number of (undirected) Hamiltonian cycles in the n-Andrásfai graph.
0
0, 1, 5, 145, 8697, 1109389, 236702901, 81673860457, 41736542812481, 30500162412101749
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Andrásfai Graph
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
FORMULA
a(n) = A143249(n)/2.
CROSSREFS
Sequence in context: A273920 A076218 A267989 * A281427 A294360 A346084
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, May 04 2019
STATUS
approved