T(n,k)=number of nXk binary matrices with rows and columns each in strictly increasing order as binary numbers and all numbers unique.
A180995
T(n,k)=number of nXk binary matrices with rows and columns each in strictly increasing order as binary numbers and all numbers unique.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =0a(16) =0a(17) =3a(18) =3a(19) =0a(20) =0a(21) =0a(22) =0a(23) =6a(24) =28a(25) =6a(26) =0a(27) =0a(28) =0a(29) =0
External references
- oeis: A180995