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

A197785

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

Terms

    a(0) =1a(1) =1a(2) =7a(3) =64a(4) =805a(5) =21526a(6) =1060565a(7) =95311741a(8) =15835547951

External references