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A137888
Number of directed Hamiltonian paths in the n-halved cube graph.
2
0, 2, 24, 13824, 47421358080
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Halved Cube Graph
Eric Weisstein's World of Mathematics, Hamiltonian Path
FORMULA
a(n) = 2 * A308130(n).
CROSSREFS
Cf. A308130.
Sequence in context: A152687 A062716 A344664 * A229333 A338152 A108349
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Feb 20 2008
EXTENSIONS
a(5) from Max Alekseyev, Dec 13 2011
STATUS
approved