Number of (n+1)X7 0..2 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.
A203726
Number of (n+1)X7 0..2 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) =5653a(1) =30335a(2) =151649a(3) =656441a(4) =2572189a(5) =9149941a(6) =29840078a(7) =90169885a(8) =254772252a(9) =677808375a(10) =1708349490a(11) =4099750861a(12) =9411074257a(13) =20745960647a(14) =44074963416a(15) =90525011000a(16) =180253851924a(17) =348831174461a(18) =657549745576
External references
- oeis: A203726