%I #9 Aug 28 2016 18:23:39

%S 1,13,26,39,52,65,78,91,104,117,130,143,156,169,169,182,195,208,221,

%T 234,247,260,273,286,299,312,325,338,338,351,364,377,390,403,416,429,

%U 442,455,468,481,494,507,507,520,533,546,559,572,585,598

%N Least positive integer k for which 13^n divides k!.

%H T. D. Noe, <a href="/A048842/b048842.txt">Table of n, a(n) for n = 0..1000</a>

%o (PARI) a(n) = {k = 1; ok = 0; until (ok, if (k! % 13^n == 0, ok=1, k++);); return (k);} \\ _Michel Marcus_, Jun 30 2013

%Y See A007843 for more information.

%K nonn

%O 0,2

%A Charles T. Le (charlestle(AT)yahoo.com)