Number of (n+1)X2 0..4 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.
A203863
Number of (n+1)X2 0..4 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) =205a(1) =1648a(2) =10077a(3) =55848a(4) =280509a(5) =1322098a(6) =5914273a(7) =25415265a(8) =105707437a(9) =428159717a(10) =1696690158a(11) =6602453062a(12) =25304540729a(13) =95747687170a(14) =358387784429
External references
- oeis: A203863