Number of ways to place n nonattacking bishops on an n X n board.

A002465

Number of ways to place n nonattacking bishops on an n X n board.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =26a(4) =260a(5) =3368a(6) =53744a(7) =1022320a(8) =22522960a(9) =565532992a(10) =15915225216a(11) =496911749920

External references