Number of nX3 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order.

A241074

Number of nX3 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order.

Terms

    a(0) =2a(1) =12a(2) =67a(3) =386a(4) =2333a(5) =14438a(6) =90729a(7) =576616a(8) =3692697a(9) =23768052a(10) =153496623a(11) =993485284a(12) =6439467991a(13) =41777922610a(14) =271212402395

External references