Number of nonequivalent binary matrices with 4 columns and any number of nonzero rows with n ones in every column up to permutation of rows and columns.
A331720
Number of nonequivalent binary matrices with 4 columns and any number of nonzero rows with n ones in every column up to permutation of rows and columns.
Terms
- a(0) =1a(1) =5a(2) =23a(3) =93a(4) =332a(5) =1062a(6) =3117a(7) =8399a(8) =21051a(9) =49451a(10) =109698a(11) =231230a(12) =465900a(13) =901425a(14) =1681989a(15) =3037536
External references
- oeis: A331720