A178986 Number of ways to place n nonattacking amazons (superqueens) on an n X n toroidal board.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 0, 1092, 0, 0, 0, 16932, 0, 24776, 0, 0, 0, 1881492, 0

Offset: 1

Author

Vaclav Kotesovec, Jan 03 2011

Keywords

• nonn
• more

Comments

An amazon (superqueen) moves like a queen and a knight.

Links

• V. Kotesovec, Non-attacking chess pieces, 6ed, 2013.
• Paul Monsky, Superqueens: Problem E3162, American Mathematical Monthly, vol. 96 (1989), p.258-259.

Crossrefs

Cf. A051223, A051906, A085801, A000170, A178975.