Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,1,3,0,2 for x=0,1,2,3,4.
A197063
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,1,3,0,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =5a(2) =76a(3) =3466a(4) =645970a(5) =387792259a(6) =814152081238
External references
- oeis: A197063