Number of nX3 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
A198703
Number of nX3 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
Terms
- a(0) =1a(1) =14a(2) =185a(3) =3893a(4) =95209a(5) =2654693a(6) =77622801a(7) =2332544112a(8) =70818414642
External references
- oeis: A198703