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

A197898

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

Terms

    a(0) =1a(1) =2a(2) =20a(3) =246a(4) =6587a(5) =330041a(6) =36098316a(7) =7888993357

External references