31197434

Appears in sequences

• Triangle read by rows: T(n,k) is the number of ways to place k non-attacking kings in each row and column of an n X n board, 0 <= k <= floor(n/4) + [n=1].at n=23A387098
• Number of ways to place 2 non-attacking kings in each row and column of an n X n board.at n=3A389766