Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,3,2,1,4 for x=0,1,2,3,4.
A196071
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,3,2,1,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =8a(4) =77a(5) =1126a(6) =31062a(7) =1430161a(8) =124227477
External references
- oeis: A196071