A137888 Number of directed Hamiltonian paths in the n-halved cube graph.

0, 2, 24, 13824, 47421358080

Offset

1,2

Links

Table of n, a(n) for n=1..5.

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

Adjacent sequences: A137885 A137886 A137887 * A137889 A137890 A137891

Keyword

nonn,more

Author

Eric W. Weisstein, Feb 20 2008

Extensions

a(5) from Max Alekseyev, Dec 13 2011

Status

approved