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

A207151

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

Terms

    a(0) =1a(1) =2a(2) =20a(3) =252a(4) =7422a(5) =424316a(6) =53078115a(7) =13870207250

External references