Position of n-th 1 in A031111.

Terms

a(0) =1a(1) =6a(2) =13a(3) =14a(4) =17a(5) =29a(6) =31a(7) =34a(8) =40a(9) =45a(10) =50a(11) =53a(12) =64a(13) =70a(14) =75a(15) =81a(16) =100a(17) =110a(18) =124a(19) =128a(20) =129a(21) =132a(22) =135a(23) =136a(24) =145a(25) =155a(26) =161a(27) =168a(28) =174a(29) =190