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A158664
Number of directed Hamiltonian paths on the n X n queen graph.
4
0, 24, 45856, 20443470512, 3762991703744441664
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Hamiltonian Path
Eric Weisstein's World of Mathematics, Queen Graph
CROSSREFS
Cf. A158663.
Sequence in context: A258901 A062322 A100733 * A125048 A003920 A367568
KEYWORD
nonn,more,hard
AUTHOR
Eric W. Weisstein, Mar 24 2009
EXTENSIONS
a(4) from Eric W. Weisstein, Dec 16 2013
a(5) from Eric W. Weisstein, Dec 26 2013
STATUS
approved