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

A198087

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

Terms

    a(0) =1a(1) =1a(2) =7a(3) =51a(4) =580a(5) =14960a(6) =692710a(7) =57268094a(8) =9248071023

External references