Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.

A295414

Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.

Terms

    a(0) =21a(1) =1632a(2) =68613a(3) =3019079a(4) =136204120a(5) =6093564449a(6) =272714953724

External references