Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,2,1,1,1,0,1 for x=0,1,2,3,4,5,6.
A198053
Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,2,1,1,1,0,1 for x=0,1,2,3,4,5,6.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =156a(4) =4193a(5) =97526a(6) =6744216a(7) =772805931a(8) =160129766560
External references
- oeis: A198053