Position of n-th 1 in A031087.

Terms

a(0) =1a(1) =10a(2) =11a(3) =12a(4) =14a(5) =16a(6) =18a(7) =20a(8) =22a(9) =24a(10) =26a(11) =29a(12) =47a(13) =65a(14) =83a(15) =101a(16) =119a(17) =137a(18) =155a(19) =156a(20) =158a(21) =161a(22) =164a(23) =167a(24) =170a(25) =173a(26) =176a(27) =179a(28) =181a(29) =182