Number of ways of placing n rooks on an n X n chessboard with the topology of a Klein bottle.
A134983
Number of ways of placing n rooks on an n X n chessboard with the topology of a Klein bottle.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =12a(4) =40a(5) =168a(6) =784a(7) =4272a(8) =25504a(9) =171168a(10) =1242688a(11) =9915072a(12) =84714112a(13) =783454848a(14) =7697178880
External references
- oeis: A134983