"BHK" (reversible, identity, unlabeled) transform of 0,1,1,1...

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =4a(7) =5a(8) =10a(9) =14a(10) =26a(11) =39a(12) =69a(13) =107a(14) =183a(15) =289a(16) =484a(17) =772a(18) =1276a(19) =2047a(20) =3356a(21) =5402a(22) =8812a(23) =14213a(24) =23113a(25) =37325a(26) =60581a(27) =97905a(28) =158718a(29) =256622