Number of 4Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.
A206890
Number of 4Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.
Terms
- a(0) =12a(1) =144a(2) =1112a(3) =7878a(4) =59812a(5) =467146a(6) =3619683a(7) =27856426a(8) =214439388a(9) =1653053388a(10) =12745491312a(11) =98247659290a(12) =757270935480
External references
- oeis: A206890