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

A197593

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

Terms

    a(0) =1a(1) =1a(2) =4a(3) =18a(4) =98a(5) =1460a(6) =35691a(7) =1385653a(8) =113578137a(9) =17175107452

External references