Duplicate of A036694.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =5a(5) =8a(6) =8a(7) =9a(8) =12a(9) =14a(10) =16a(11) =15a(12) =16a(13) =22a(14) =21a(15) =24a(16) =22a(17) =26a(18) =27a(19) =30a(20) =32a(21) =29a(22) =36a(23) =34a(24) =35a(25) =42