Number of nX6 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.
A198713
Number of nX6 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.
Terms
- a(0) =41a(1) =8404a(2) =1749965a(3) =364637102a(4) =75987485516
External references
- oeis: A198713