Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,0,1,0,0,0,0 for x=0,1,2,3,4,5,6.
A195899
Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,0,1,0,0,0,0 for x=0,1,2,3,4,5,6.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =138a(4) =2361a(5) =68954a(6) =3847840a(7) =397723933a(8) =77013373733
External references
- oeis: A195899