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

A203111

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

Terms

    a(0) =1a(1) =7a(2) =39a(3) =391a(4) =7116a(5) =215645a(6) =11464709a(7) =1047501118a(8) =164954468453

External references