Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-2,1) or (-1,-1) and new values introduced in order 0..2.
A275259
Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-2,1) or (-1,-1) and new values introduced in order 0..2.
Terms
- a(0) =1a(1) =9a(2) =128a(3) =2564a(4) =126420a(5) =14005180a(6) =3224773976
External references
- oeis: A275259