Number of ternary Lyndon words of length n with trace 0 and subtrace 1 over GF(3).

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =6a(5) =14a(6) =36a(7) =93a(8) =252a(9) =661a(10) =1782a(11) =4893a(12) =13608a(13) =37890a(14) =106142a(15) =298755a(16) =844182a(17) =2391732a(18) =6797196a(19) =19371684a(20) =55348596a(21) =158491993a(22) =454795398a(23) =1307534319a(24) =3765720066a(25) =10862647236a(26) =31381000560a(27) =90780846494a(28) =262951692390