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

A197754

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

Terms

    a(0) =1a(1) =1a(2) =7a(3) =46a(4) =620a(5) =15146a(6) =684630a(7) =56031069a(8) =8451164309

External references