Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A299329

Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =3a(2) =8a(3) =36a(4) =173a(5) =858a(6) =4258a(7) =21386a(8) =107465a(9) =541047a(10) =2725498a(11) =13733762a(12) =69215100a(13) =348852964a(14) =1758324488a(15) =8862635135a(16) =44671460074a(17) =225164071583

External references