T(n,k)=Number of nXk binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.
A266935
T(n,k)=Number of nXk binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.
Terms
- a(0) =2a(1) =2a(2) =3a(3) =2a(4) =4a(5) =4a(6) =2a(7) =4a(8) =7a(9) =5a(10) =2a(11) =5a(12) =9a(13) =12a(14) =6a(15) =2a(16) =5a(17) =12a(18) =20a(19) =19a(20) =7a(21) =2a(22) =6a(23) =14a(24) =35a(25) =44a(26) =29a(27) =8a(28) =2a(29) =6
External references
- oeis: A266935