Number of 3 X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
A206872
Number of 3 X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
Terms
- a(0) =7a(1) =49a(2) =211a(3) =1153a(4) =6139a(5) =31529a(6) =165783a(7) =867545a(8) =4529439a(9) =23698777a(10) =123917699a(11) =647878921a(12) =3387923179a(13) =17715041713a(14) =92629806615a(15) =484357042545
External references
- oeis: A206872