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

A197941

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

Terms

    a(0) =1a(1) =2a(2) =8a(3) =59a(4) =758a(5) =16589a(6) =691050a(7) =49864703a(8) =6407474303

External references