Number of 6Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302684

Number of 6Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =32a(1) =14a(2) =18a(3) =64a(4) =125a(5) =453a(6) =2013a(7) =6725a(8) =21745a(9) =80985a(10) =295335a(11) =1015113a(12) =3570091a(13) =12835677a(14) =45416833a(15) =159687591a(16) =566457119a(17) =2010993911a(18) =7108904181a(19) =25146289499a(20) =89111146015a(21) =315554058131

External references