Number of nonisomorphic binary n X n matrices with three 1's per column under row and column permutations.
A247596
Number of nonisomorphic binary n X n matrices with three 1's per column under row and column permutations.
Terms
- a(0) =1a(1) =5a(2) =35a(3) =410a(4) =6178a(5) =122038a(6) =2921607a(7) =81609320a(8) =2588949454a(9) =91699869557
External references
- oeis: A247596