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

A197902

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

Terms

    a(0) =1a(1) =4a(2) =10a(3) =54a(4) =453a(5) =2632a(6) =38088a(7) =648219a(8) =13492068a(9) =444723130

External references