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

A197900

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

Terms

    a(0) =1a(1) =2a(2) =11a(3) =88a(4) =1756a(5) =55005a(6) =3706910a(7) =487165419a(8) =121319839455

External references