"CGK" (necklace, element, unlabeled) transform of 2,1,1,1,...

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =5a(5) =6a(6) =10a(7) =17a(8) =21a(9) =30a(10) =46a(11) =79a(12) =97a(13) =142a(14) =190a(15) =285a(16) =465a(17) =590a(18) =826a(19) =1131a(20) =1541a(21) =2142a(22) =3458a(23) =4281a(24) =6037a(25) =8030a(26) =10974a(27) =14295a(28) =19993a(29) =29806