Array read by antidiagonals: A(n,k) is the number of nonequivalent binary matrices with k columns and any number of nonzero rows with n ones in every column up to permutation of rows and columns.

A331461

Array read by antidiagonals: A(n,k) is the number of nonequivalent binary matrices with k 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) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =1a(9) =1a(10) =1a(11) =3a(12) =3a(13) =1a(14) =1a(15) =1a(16) =5a(17) =8a(18) =4a(19) =1a(20) =1a(21) =1a(22) =7a(23) =23a(24) =16a(25) =5a(26) =1a(27) =1a(28) =1a(29) =11

External references