Number of 6Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302168

Number of 6Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =32a(1) =42a(2) =57a(3) =156a(4) =280a(5) =635a(6) =1247a(7) =2815a(8) =5524a(9) =12457a(10) =25230a(11) =55645a(12) =113410a(13) =249611a(14) =517232a(15) =1123390a(16) =2334467a(17) =5059272a(18) =10608909a(19) =22830143a(20) =47940869a(21) =102999865a(22) =217358333a(23) =465280120a(24) =982600249a(25) =2101097147a(26) =4449151154a(27) =9495603067

External references