A158663 Number of directed Hamiltonian cycles on the n X n queen graph.

6, 3920, 804728540, 79483492253499328

Offset

2,1

Links

Table of n, a(n) for n=2..5.

Artem M. Karavaev, FlowProblem.ru web-project: Statistics of Simple Cycles page. - Artem M. Karavaev, Nov 24 2009

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

Eric Weisstein's World of Mathematics, Queen Graph

Crossrefs

Cf. A158664.

Sequence in context: A198660 A048542 A140173 * A110106 A024087 A161845

Adjacent sequences: A158660 A158661 A158662 * A158664 A158665 A158666

Keyword

nonn,more,hard

Author

Eric W. Weisstein, Mar 24 2009

Extensions

a(4)-a(5) from Artem M. Karavaev, Nov 24 2009

Status

approved