Number of ways to place 12n nonattacking kings on a 24 X 2n cylindrical chessboard.

A195656

Number of ways to place 12n nonattacking kings on a 24 X 2n cylindrical chessboard.

Terms

    a(0) =53248a(1) =233476a(2) =1257754a(3) =7682812a(4) =51698178a(5) =378088270a(6) =2980927200a(7) =25173962492a(8) =226268016376

External references