a(n) = A266196(A000079(n)); indices of powers of 2 in A266195.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =12a(5) =16a(6) =25a(7) =42a(8) =50a(9) =82a(10) =104a(11) =116a(12) =201a(13) =227a(14) =243a(15) =455a(16) =477a(17) =517a(18) =1035a(19) =1093a(20) =1155a(21) =1217a(22) =2599a(23) =2695a(24) =4377a(25) =4491a(26) =4773a(27) =4947a(28) =5137a(29) =13409