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

A197751

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

Terms

    a(0) =1a(1) =1a(2) =10a(3) =67a(4) =884a(5) =19670a(6) =1109494a(7) =102276730a(8) =16849486788

External references