Number of nX5 0..3 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222497
Number of nX5 0..3 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =4a(1) =14a(2) =81a(3) =3915a(4) =52190a(5) =2793098a(6) =48860520a(7) =3227092882a(8) =57081799730
External references
- oeis: A222497