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A281255
Number of directed Hamiltonian cycles on the n-halved cube graph.
1
0, 6, 1488, 1973918880, 625659743022644718120960
OFFSET
2,2
LINKS
Eric Weisstein's World of Mathematics, Halved Cube Graph
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
CROSSREFS
Sequence in context: A358626 A131453 A265862 * A216934 A308029 A160226
KEYWORD
nonn,hard,more
AUTHOR
Eric W. Weisstein, Jan 18 2017
EXTENSIONS
a(6) from Eric W. Weisstein, Feb 10 2017
STATUS
approved