Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A303194

Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =25a(2) =43a(3) =97a(4) =523a(5) =1751a(6) =5573a(7) =21575a(8) =76833a(9) =266179a(10) =971949a(11) =3482591a(12) =12336431a(13) =44409867a(14) =159182895a(15) =567732335a(16) =2035296081a(17) =7291955435a(18) =26069806559a(19) =93348365103a(20) =334298657839

External references