Number of n X n grids with 3 non-attacking kings on each row.

A390736

Number of n X n grids with 3 non-attacking kings on each row.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =20a(12) =263928a(13) =22868187338

External references