Number of nX7 0..3 arrays with exactly floor(nX7/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222746
Number of nX7 0..3 arrays with exactly floor(nX7/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =70a(1) =1710608a(2) =20825891902
External references
- oeis: A222746