456704

Appears in sequences

• Number of ways to place 2 nonattacking amazons (superqueens) on an n X n toroidal board.at n=31A178972
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 441", based on the 5-celled von Neumann neighborhood.at n=18A288331