Number of nX5 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

A301605

Number of nX5 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =6a(2) =13a(3) =65a(4) =330a(5) =1297a(6) =6393a(7) =30904a(8) =154041a(9) =764894a(10) =3804884a(11) =18978589a(12) =94697319a(13) =472770928a(14) =2360757090a(15) =11789229577a(16) =58877258002a(17) =294049444613

External references