Duplicate of A026188.

Terms

a(0) =1a(1) =3a(2) =5a(3) =2a(4) =9a(5) =11a(6) =4a(7) =15a(8) =6a(9) =7a(10) =21a(11) =23a(12) =8a(13) =27a(14) =10a(15) =33a(16) =12a(17) =13a(18) =39a(19) =41a(20) =14a(21) =45a(22) =47a(23) =16a(24) =17a(25) =51a(26) =18a(27) =19a(28) =57a(29) =59