A062931 - OEIS

A062931

Numbers k that, when expressed in base 5 and then interpreted in base 9, give a multiple of k.

0, 1, 2, 3, 4, 28, 30, 58, 60, 88, 90, 118, 120, 168, 179, 180, 348, 359, 360, 840, 895, 900, 1740, 1795, 1800, 5370, 5400, 11726, 11984, 16200, 21142, 26850, 27000, 38340, 57574, 137128, 183960, 214207, 293628, 421560, 750288, 866700, 1043027, 1304280, 1468140

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..45.

EXAMPLE

28 in base 5 is 103, which interpreted in base 9 is 84 = 3*28.

MATHEMATICA

Join[{0}, Select[Range[11*10^5], Divisible[FromDigits[ IntegerDigits[ #, 5], 9], #]&]] (* Harvey P. Dale, Apr 27 2015 *)

CROSSREFS