Number of (n+1)X(6+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

A250705

Number of (n+1)X(6+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

Terms

    a(0) =521684a(1) =9240474a(2) =122690762a(3) =1307242006a(4) =11455263558a(5) =85271480338a(6) =550734848033

External references