Positions of 2 in A020903; complement of A191777.

Terms

a(0) =2a(1) =4a(2) =7a(3) =9a(4) =11a(5) =13a(6) =16a(7) =18a(8) =22a(9) =24a(10) =27a(11) =29a(12) =31a(13) =34a(14) =37a(15) =39a(16) =42a(17) =44a(18) =46a(19) =48a(20) =51a(21) =53a(22) =56a(23) =58a(24) =61a(25) =63a(26) =65a(27) =67a(28) =69a(29) =72