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 A236178 #11 Mar 10 2014 17:23:04 %S A236178 54,5,12,18,5,18,12,6,11,20,17,7,18,11,7,18,12,19,26,12,6,11,6,13,44, %T A236178 10,19,6,31,6,18,20,13,19,17,5,31,6,14,5,37,38,13,5,13,19,5,32,18,20, %U A236178 17,7,18,11,6,19,10,44,13,5,13,18,26,19,31,7,11,18,7 %N A236178 Prime gap pattern of compacting Eratosthenes sieve for prime(7) = 17. %C A236178 See A236175 for details. %H A236178 Christopher J. Hanson, <a href="/A236178/b236178.txt">Table of n, a(n) for n = 1..5760</a> %Y A236178 Cf. A236175-A236180, A236185-A236190. %K A236178 nonn %O A236178 1,1 %A A236178 _Christopher J. Hanson_, Jan 19 2014