2921607
domain: N
Appears in sequences
- Number of nonisomorphic binary n X n matrices with three 1's per column under row and column permutations.at n=6A247596
- Triangle read by rows: T(n,k) is the number of nonisomorphic binary n X n matrices with k 1's per column under row and column permutations.at n=48A304942
- Triangle read by rows: T(n,k) is the number of nonisomorphic binary n X n matrices with k 1's per column under row and column permutations.at n=51A304942