Record values in A030767.

Terms

a(0) =2a(1) =4a(2) =5a(3) =6a(4) =7a(5) =8a(6) =9a(7) =10a(8) =12a(9) =13a(10) =15a(11) =16a(12) =18a(13) =19a(14) =21a(15) =22a(16) =24a(17) =25a(18) =28a(19) =31a(20) =34a(21) =36a(22) =38a(23) =45a(24) =48a(25) =52a(26) =56a(27) =61a(28) =65a(29) =69