Number of (n+1)X6 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
A203738
Number of (n+1)X6 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
Terms
- a(0) =31942a(1) =488745a(2) =5538127a(3) =47229554a(4) =325435792a(5) =1908258519a(6) =9804436984a(7) =45182796559a(8) =189566445222a(9) =733391349143
External references
- oeis: A203738