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

A198050

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

Terms

    a(0) =1a(1) =4a(2) =21a(3) =268a(4) =5693a(5) =304842a(6) =29792961a(7) =5250711122

External references