Positions of odd numbers in A024702.

Terms

a(0) =3a(1) =5a(2) =6a(3) =8a(4) =10a(5) =12a(6) =14a(7) =16a(8) =17a(9) =18a(10) =19a(11) =23a(12) =26a(13) =28a(14) =29a(15) =32a(16) =34a(17) =35a(18) =37a(19) =38a(20) =40a(21) =41a(22) =42a(23) =45a(24) =47a(25) =49a(26) =50a(27) =54a(28) =57a(29) =59