"DGK" (bracelet, element, unlabeled) transform of 2,1,1,1,...

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =4a(5) =5a(6) =7a(7) =11a(8) =13a(9) =18a(10) =26a(11) =43a(12) =52a(13) =75a(14) =99a(15) =147a(16) =237a(17) =300a(18) =418a(19) =571a(20) =776a(21) =1077a(22) =1735a(23) =2147a(24) =3025a(25) =4022a(26) =5494a(27) =7155a(28) =10004a(29) =14911