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 A180706 #6 Jan 17 2016 14:00:27 %S A180706 0,5,2,6,17,3,14,7,25,18,11,29,4,40,15,8,26,44,1,37,55,12,30,5,23,41, %T A180706 59,16,77,34,52,9,27,45,106,2,20,142,38,56,117,13,31,92,49,110,6,24, %U A180706 85,207,42,225,60,17,78,200,35,157,53,175,10,132,28,89,150,46,107,3,64,186,21 %N A180706 19^a(n) is smallest power of 19 beginning with n. %H A180706 D. Mondot, <a href="/A180706/b180706.txt">Table of n, a(n) for n=1..32699</a> %Y A180706 Cf. A180704, A180705, A180726 %K A180706 base,nonn %O A180706 1,2 %A A180706 _Daniel Mondot_, Sep 18 2010