Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,1,2,0,4 for x=0,1,2,3,4.
A196905
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,1,2,0,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =6a(2) =50a(3) =1193a(4) =72523a(5) =12186565a(6) =5388703976
External references
- oeis: A196905