Numbers whose base-5 representation Sum_{i=0..m} d(i)*5^i has d(m) <= d(m-1) >= d(m-2) <= ...

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =7a(6) =8a(7) =9a(8) =12a(9) =13a(10) =14a(11) =18a(12) =19a(13) =24a(14) =30a(15) =31a(16) =35a(17) =36a(18) =37a(19) =40a(20) =41a(21) =42a(22) =43a(23) =45a(24) =46a(25) =47a(26) =48a(27) =49a(28) =60a(29) =61