Number of length-n binary strings having a string attractor of size at most 2.
A355520
Number of length-n binary strings having a string attractor of size at most 2.
Terms
- a(0) =2a(1) =4a(2) =8a(3) =16a(4) =32a(5) =62a(6) =116a(7) =206a(8) =350a(9) =566a(10) =886a(11) =1334a(12) =1974a(13) =2846a(14) =3978a(15) =5472a(16) =7398a(17) =9854a(18) =12964a(19) =16804a(20) =21524
External references
- oeis: A355520