Numbers whose base-9 representation Sum_{i=0..m} d(i)*9^i has d(0) > d(1) < d(2) > ...

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =11a(9) =12a(10) =13a(11) =14a(12) =15a(13) =16a(14) =17a(15) =21a(16) =22a(17) =23a(18) =24a(19) =25a(20) =26a(21) =31a(22) =32a(23) =33a(24) =34a(25) =35a(26) =41a(27) =42a(28) =43a(29) =44