Number of nX6 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302161

Number of nX6 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) =13a(1) =65a(2) =34a(3) =109a(4) =296a(5) =635a(6) =1563a(7) =3948a(8) =9405a(9) =22602a(10) =55730a(11) =135448a(12) =327429a(13) =798275a(14) =1944498a(15) =4720205a(16) =11478126a(17) =27935558a(18) =67913732a(19) =165112453a(20) =401615997a(21) =976675958a(22) =2374829337a(23) =5775344378a(24) =14045080684a(25) =34154018024a(26) =83055854601

External references