Number of (n+1)X(7+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.

A250690

Number of (n+1)X(7+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) =780551a(1) =3894542a(2) =19218493a(3) =92169818a(4) =420283865a(5) =1832718604a(6) =7662909389a(7) =30911828018a(8) =121133941641a(9) =463951270668

External references