"BGK" (reversible, element, unlabeled) transform of 2,1,1,1,...

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =6a(5) =7a(6) =13a(7) =26a(8) =32a(9) =48a(10) =78a(11) =154a(12) =187a(13) =287a(14) =392a(15) =615a(16) =1104a(17) =1399a(18) =2023a(19) =2822a(20) =3938a(21) =5592a(22) =9744a(23) =12010a(24) =17437a(25) =23519a(26) =32810a(27) =43167a(28) =61734a(29) =96895