Number of 2nX8 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor.
A198531
Number of 2nX8 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor.
Terms
- a(0) =492a(1) =74582a(2) =12510524a(3) =2223874372a(4) =411119156729
External references
- oeis: A198531