Number of nonequivalent n X n binary matrices with 4 ones in every row and column up to permutation of rows.
A333900
Number of nonequivalent n X n binary matrices with 4 ones in every row and column up to permutation of rows.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =130a(7) =16700a(8) =3330915a(9) =957659906a(10) =382304435016
External references
- oeis: A333900