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

A198054

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

Terms

    a(0) =1a(1) =5a(2) =29a(3) =429a(4) =13478a(5) =910051a(6) =128957786a(7) =38406748458

External references