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 A233545 #5 Dec 12 2013 22:44:33 %S A233545 1340,15704,19634,31428,370310,1357264,2010800,4652428,20831422, %T A233545 47326799,4302407528,10726904846,25056082298,42652618572,303371455488, %U A233545 304599508788,1346294311034,2614941710924,7177162612042 %N A233545 Lonely numbers (A051650) which start a run of consecutive lonely numbers with difference 1. %Y A233545 Cf. A051650. %K A233545 nonn %O A233545 1,1 %A A233545 _Arkadiusz Wesolowski_, Dec 12 2013