Array read by antidiagonals: A(n,k) is the number of binary matrices with k distinct columns and any number of nonzero rows with n ones in every column and columns in decreasing lexicographic order.
A331277
Array read by antidiagonals: A(n,k) is the number of binary matrices with k distinct columns and any number of nonzero rows with n ones in every column and columns in decreasing lexicographic order.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =1a(8) =1a(9) =1a(10) =0a(11) =1a(12) =6a(13) =1a(14) =1a(15) =0a(16) =1a(17) =62a(18) =31a(19) =1a(20) =1a(21) =0a(22) =1a(23) =900a(24) =2649a(25) =160a(26) =1a(27) =1a(28) =0a(29) =1
External references
- oeis: A331277