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

A202760

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

Terms

    a(0) =1a(1) =2a(2) =8a(3) =59a(4) =708a(5) =17939a(6) =732635a(7) =53426336a(8) =7044973436

External references