"CFK" (necklace, size, unlabeled) transform of 1,2,3,4...

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =7a(5) =15a(6) =31a(7) =51a(8) =86a(9) =171a(10) =388a(11) =575a(12) =1093a(13) =1795a(14) =3417a(15) =7825a(16) =11754a(17) =20585a(18) =35432a(19) =59947a(20) =103943a(21) =244933a(22) =349513a(23) =622059a(24) =1004616a(25) =1720341a(26) =2717372a(27) =4781105a(28) =10523263a(29) =15182123