T(n,k)=Number of nXk arrays of nonnegative integers with rows and columns in lexicographically increasing order and some row sum or column sum equalling each of the values 1..n+k.

A178990

T(n,k)=Number of nXk arrays of nonnegative integers with rows and columns in lexicographically increasing order and some row sum or column sum equalling each of the values 1..n+k.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =0a(4) =4a(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) =1924a(18) =1924a(19) =0a(20) =0a(21) =0a(22) =0a(23) =19799a(24) =68302a(25) =19799a(26) =0a(27) =0a(28) =0a(29) =0

External references