Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A299447

Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =5a(1) =8a(2) =4a(3) =21a(4) =32a(5) =36a(6) =161a(7) =264a(8) =430a(9) =1475a(10) =2598a(11) =4872a(12) =14489a(13) =27382a(14) =55350a(15) =152073a(16) =300506a(17) =637120a(18) =1666139a(19) =3393668a(20) =7453726a(21) =18821937a(22) =39280750a(23) =88534484a(24) =217732841a(25) =464385964a(26) =1065353486a(27) =2568691553a(28) =5587193344a(29) =12959951420

External references