Number of nX4 0..2 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.

A222398

Number of nX4 0..2 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.

Terms

    a(0) =3a(1) =9a(2) =35a(3) =162a(4) =717a(5) =8803a(6) =55761a(7) =648643a(8) =4706538a(9) =56003424a(10) =406023424a(11) =4784210119a(12) =35733523091a(13) =409997141918

External references