Number of (7+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

A250698

Number of (7+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

Terms

    a(0) =1005121a(1) =7249825a(2) =37322413a(3) =160222342a(4) =617657415a(5) =2224688673a(6) =7662909389a(7) =25622390948a(8) =84040600357a(9) =272488719033a(10) =878393149045

External references