Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,4,3,1,1,1,0 for x=0,1,2,3,4,5,6.
A197854
Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,4,3,1,1,1,0 for x=0,1,2,3,4,5,6.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =23a(4) =99a(5) =3534a(6) =128172a(7) =3539360a(8) =652403517a(9) =143579369777
External references
- oeis: A197854