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

A198052

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

Terms

    a(0) =1a(1) =2a(2) =20a(3) =144a(4) =3897a(5) =177020a(6) =16432206a(7) =3384968739

External references