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

A197919

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

Terms

    a(0) =1a(1) =4a(2) =12a(3) =94a(4) =1604a(5) =47877a(6) =2261778a(7) =187733882a(8) =30981880951

External references