Position of n-th 2 in A030386.

Terms

a(0) =2a(1) =8a(2) =13a(3) =15a(4) =16a(5) =17a(6) =19a(7) =24a(8) =34a(9) =46a(10) =53a(11) =56a(12) =58a(13) =59a(14) =62a(15) =70a(16) =78a(17) =81a(18) =82a(19) =84a(20) =87a(21) =90a(22) =93a(23) =94a(24) =96a(25) =99a(26) =101a(27) =102a(28) =104a(29) =105