896324308634
domain: N
Appears in sequences
- Number of partial permutations of an n-set; number of n X n binary matrices with at most one 1 in each row and column.at n=13A002720
- Denominators of continued fraction for alternating factorial.at n=26A056953
- Number of ways to place k non-attacking bishops on an n x n toroidal chessboard, summed over all k >= 0.at n=12A215943