Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 1 vertically.
A207512
Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 1 vertically.
Terms
- a(0) =18a(1) =324a(2) =660a(3) =1992a(4) =5334a(5) =10340a(6) =22960a(7) =46826a(8) =94601a(9) =192192a(10) =375592a(11) =746568a(12) =1463672a(13) =2848131a(14) =5567402a(15) =10787309a(16) =20928995a(17) =40520266a(18) =78275905a(19) =151304457a(20) =291889743a(21) =563242937a(22) =1086277275a(23) =2094265839a(24) =4038763494a(25) =7785977121
External references
- oeis: A207512