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

Terms

a(0) =1a(1) =2a(2) =2a(3) =6a(4) =6a(5) =10a(6) =26a(7) =30a(8) =46a(9) =66a(10) =178a(11) =198a(12) =326a(13) =442a(14) =666a(15) =1566a(16) =1886a(17) =2882a(18) =4082a(19) =5942a(20) =8006a(21) =18426a(22) =21450a(23) =33502a(24) =45854a(25) =67314a(26) =89074a(27) =128310a(28) =252406a(29) =309498