Number of ways to place k non-attacking wazirs on an n x n cylindrical chessboard, summed over all k >= 0.
A212270
Number of ways to place k non-attacking wazirs on an n x n cylindrical chessboard, summed over all k >= 0.
Terms
- a(0) =2a(1) =7a(2) =43a(3) =933a(4) =36211a(5) =3557711a(6) =746156517a(7) =363549830913
External references
- oeis: A212270