a(n) is the smallest k such that A307092(k) = n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =9a(5) =15a(6) =27a(7) =47a(8) =55a(9) =95a(10) =187a(11) =191a(12) =375a(13) =415a(14) =751a(15) =831a(16) =1503a(17) =1663a(18) =3007a(19) =3327a(20) =6639a(21) =7039a(22) =13279a(23) =14079a(24) =26559a(25) =28159a(26) =53119a(27) =56319a(28) =106239a(29) =112639