Position of A332979(n) in the Doudna sequence A005940.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =15a(5) =29a(6) =61a(7) =125a(8) =249a(9) =497a(10) =1009a(11) =2033a(12) =4081a(13) =8177a(14) =16369a(15) =32753a(16) =65521a(17) =131057a(18) =262081a(19) =524225a(20) =1048513a(21) =2097089a(22) =4194241a(23) =8388545a(24) =16777153a(25) =33553921a(26) =67108353a(27) =134217217a(28) =268434945a(29) =536870401