Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4.
A196689
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =5a(2) =76a(3) =3394a(4) =546956a(5) =279754939a(6) =465819437152
External references
- oeis: A196689