Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.

A207266

Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.

Terms

    a(0) =13a(1) =169a(2) =499a(3) =1602a(4) =5904a(5) =18055a(6) =52240a(7) =156473a(8) =460171a(9) =1324209a(10) =3824481a(11) =11017816a(12) =31464850a(13) =89582619a(14) =254431356a(15) =719347025a(16) =2026808124a(17) =5696170867a(18) =15961932156a(19) =44610315375a(20) =124409802922a(21) =346245984652a(22) =961805475293

External references