Number of ways to place n+2 queens and 2 pawns on an n X n board so that no two queens attack each other.

A129551

Number of ways to place n+2 queens and 2 pawns on an n X n board so that no two queens attack each other.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =4a(7) =44a(8) =280a(9) =1304a(10) =12452a(11) =105012a(12) =977664a(13) =9239816a(14) =90776620a(15) =897446092

External references