Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.
A198707
Number of nX7 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) =11a(1) =27422a(2) =77622801a(3) =316137386807
External references
- oeis: A198707