Number of palindromic binary strings of length n having no 6-runs of 1's.

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =4a(5) =8a(6) =7a(7) =15a(8) =14a(9) =30a(10) =28a(11) =60a(12) =56a(13) =119a(14) =111a(15) =236a(16) =220a(17) =468a(18) =436a(19) =928a(20) =865a(21) =1841a(22) =1716a(23) =3652a(24) =3404a(25) =7244a(26) =6752a(27) =14369a(28) =13393a(29) =28502