Number of 4Xn 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.
A207940
Number of 4Xn 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =8a(1) =64a(2) =200a(3) =643a(4) =2422a(5) =9430a(6) =38207a(7) =156792a(8) =649758a(9) =2703377a(10) =11276024a(11) =47088326a(12) =196773391a(13) =822559178a(14) =3439147214a(15) =14380613647a(16) =60135069834a(17) =251472698220
External references
- oeis: A207940