Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,2,2 for x=0,1,2,3,4.
A197555
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,2,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =7a(2) =35a(3) =927a(4) =36877a(5) =4706533a(6) =1435938748
External references
- oeis: A197555