Position of n-th 2 in A030373.

Terms

a(0) =2a(1) =9a(2) =12a(3) =14a(4) =16a(5) =17a(6) =18a(7) =25a(8) =36a(9) =48a(10) =53a(11) =56a(12) =59a(13) =60a(14) =62a(15) =72a(16) =76a(17) =79a(18) =82a(19) =84a(20) =85a(21) =88a(22) =91a(23) =94a(24) =96a(25) =97a(26) =100a(27) =101a(28) =103a(29) =104