Number of nX5 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
A198705
Number of nX5 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) =3a(1) =488a(2) =95209a(3) =30407251a(4) =10239497407
External references
- oeis: A198705