Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,0,0,1,1,0,1 for x=0,1,2,3,4,5,6.

A205078

Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,0,0,1,1,0,1 for x=0,1,2,3,4,5,6.

Terms

    a(0) =1a(1) =7a(2) =18a(3) =139a(4) =2263a(5) =33868a(6) =1366867a(7) =93953872a(8) =8556279399

External references