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

A197933

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

Terms

    a(0) =1a(1) =4a(2) =4a(3) =44a(4) =553a(5) =4203a(6) =289494a(7) =12835539a(8) =819547071a(9) =248197784731

External references