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

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =9a(5) =14a(6) =24a(7) =40a(8) =64a(9) =120a(10) =197a(11) =348a(12) =609a(13) =1098a(14) =1808a(15) =3078a(16) =5602a(17) =9118a(18) =15789a(19) =25568a(20) =43857a(21) =73632a(22) =120882a(23) =195236a(24) =317706a(25) =532906a(26) =843805a(27) =1387158a(28) =2184539a(29) =3473958