Number of 4Xn 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
A206873
Number of 4Xn 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
Terms
- a(0) =12a(1) =144a(2) =889a(3) =7675a(4) =63866a(5) =502864a(6) =4108471a(7) =33311703a(8) =269021206a(9) =2180747052a(10) =17657728229a(11) =142945674729
External references
- oeis: A206873