This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A096682 #7 Sep 23 2016 06:25:00 %S A096682 3,15,1,75,6,5,429,375,37,3,3,25,231,2145,2,1875,1959,185,1737,15,143, %T A096682 15,14361,125,12,1155,12345679,10725,113907,1,10743,9375,1,9795,858, %U A096682 925,9,8685,77,75,813,715,76821,75,74,71805,639,625,67347,6,653,5775,5661 %N A096682 Least k such that decimal representation of k*n contains only digits 0 and 3. %H A096682 Robert G. Wilson v, <a href="/A096682/b096682.txt">Table of n, a(n) for n = 1..10000</a> %F A096682 a(n) = A078242(n)/n. %Y A096682 Cf. A004290, A078241-A078248, A079339, A096681-A096688. %K A096682 base,nonn %O A096682 1,1 %A A096682 _Ray Chandler_, Jul 12 2004