Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 4 1s.
A295203
Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 4 1s.
Terms
- a(0) =1a(1) =9a(2) =53a(3) =284a(4) =1597a(5) =8241a(6) =40924a(7) =205338a(8) =1042704a(9) =5314555a(10) =27092309a(11) =138002993a(12) =702445256a(13) =3574586491a(14) =18191250083a(15) =92585186127a(16) =471238018339
External references
- oeis: A295203