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

A203214

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

Terms

    a(0) =1a(1) =5a(2) =23a(3) =187a(4) =3000a(5) =90699a(6) =4571442a(7) =415131937a(8) =68838186962

External references