Array T(n,k) = number of n X k binary matrices with rows and columns in lexicographically nondecreasing order.

A180985

Array T(n,k) = number of n X k binary matrices with rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =2a(1) =3a(2) =3a(3) =4a(4) =7a(5) =4a(6) =5a(7) =14a(8) =14a(9) =5a(10) =6a(11) =25a(12) =45a(13) =25a(14) =6a(15) =7a(16) =41a(17) =130a(18) =130a(19) =41a(20) =7a(21) =8a(22) =63a(23) =336a(24) =650a(25) =336a(26) =63a(27) =8a(28) =9a(29) =92

External references