837828

Appears in sequences

• Number of ways to place 2 nonattacking queens on an n X n toroidal board.at n=36A172517
• Number of 4-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions.at n=17A187852
• Number of ways to place 2 nonattacking nightriders on an n X n toroidal board.at n=36A196812