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

A197565

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

Terms

    a(0) =1a(1) =7a(2) =33a(3) =499a(4) =11575a(5) =531309a(6) =48475501a(7) =7812612736

External references