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

A197948

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

Terms

    a(0) =1a(1) =4a(2) =42a(3) =801a(4) =32906a(5) =2686539a(6) =448034446a(7) =157510353675

External references