A050625 Divisible by 3^k (where k is digit length of a(n)).

3, 6, 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, 540, 567, 594, 621, 648, 675, 702, 729, 756, 783, 810, 837, 864, 891, 918, 945, 972, 999, 1053, 1134, 1215, 1296, 1377, 1458

Offset: 1

Author

Patrick De Geest, Jun 15 1999

Keywords

• nonn
• base
• easy

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A035014, A050622, A050623.

Programs

Mathematica

Flatten[Table[3^n*Range[Ceiling[10^(n-1)/3^n],Floor[(10^n-1)/3^n]],{n,4}]] (* Harvey P. Dale, Feb 26 2015 *)
Select[Range[1500],Mod[#,3^IntegerLength[#]]==0&] (* Harvey P. Dale, Apr 04 2020 *)