Number of nX4 0..3 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
A222607
Number of nX4 0..3 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =6a(1) =520a(2) =42492a(3) =3584673a(4) =298478633a(5) =24650010932
External references
- oeis: A222607