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

A203120

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

Terms

    a(0) =1a(1) =4a(2) =22a(3) =186a(4) =6533a(5) =192632a(6) =19111567a(7) =3204615373

External references