Number of n X n 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.
A203593
Number of n X n 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.
Terms
- a(0) =3a(1) =16a(2) =172a(3) =20000a(4) =8227090
External references
- oeis: A203593