Number of length-n quasiperiodic binary strings.

Terms

a(0) =0a(1) =2a(2) =2a(3) =4a(4) =4a(5) =10a(6) =10a(7) =26a(8) =22a(9) =56a(10) =68a(11) =118a(12) =126a(13) =284a(14) =274a(15) =542a(16) =604a(17) =1144a(18) =1196a(19) =2284a(20) =2340a(21) =4600a(22) =4876a(23) =9010a(24) =9280a(25) =18286a(26) =18476a(27) =35546a(28) =36886a(29) =70320