Number of n X n X n 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,0,1,1,1,1,1 for x=0,1,2,3,4,5,6.
A198025
Number of n X n X n 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,0,1,1,1,1,1 for x=0,1,2,3,4,5,6.
Terms
- a(0) =1a(1) =4a(2) =4a(3) =9a(4) =253a(5) =1866a(6) =41286a(7) =1769077a(8) =63965087a(9) =8815768229
External references
- oeis: A198025