Permutation of natural numbers: a(n) = A156552(1+A005940(1+n)).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =8a(6) =9a(7) =6a(8) =7a(9) =16a(10) =15a(11) =32a(12) =65a(13) =128a(14) =35a(15) =64a(16) =11a(17) =10a(18) =33a(19) =18a(20) =27a(21) =1024a(22) =513a(23) =12a(24) =25a(25) =130a(26) =515a(27) =2048a(28) =77a(29) =36