Number of nX5 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
A198659
Number of nX5 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
Terms
- a(0) =3a(1) =488a(2) =98467a(3) =40065880a(4) =22693251873
External references
- oeis: A198659