Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,1,1 for x=0,1,2,3,4.
A198149
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,1,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =7a(2) =54a(3) =2093a(4) =260917a(5) =108428600a(6) =147146211014
External references
- oeis: A198149