Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 1,3,4,0,2 for x=0,1,2,3,4.
A196642
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 1,3,4,0,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =1a(2) =16a(3) =129a(4) =4273a(5) =217880a(6) =23946130a(7) =5094296927
External references
- oeis: A196642