Smooth Lyndon words with 3 colors.

Terms

a(0) =1a(1) =3a(2) =2a(3) =5a(4) =10a(5) =24a(6) =49a(7) =112a(8) =240a(9) =534a(10) =1175a(11) =2626a(12) =5848a(13) =13153a(14) =29594a(15) =66955a(16) =151814a(17) =345494a(18) =788049a(19) =1802675a(20) =4132469a(21) =9495242a(22) =21859912a(23) =50423465a(24) =116511119a(25) =269666586a(26) =625101288a(27) =1451128164a(28) =3373250909a(29) =7851415835