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 A110018 #3 Dec 15 2017 17:36:56 %S A110018 10611,145215 %N A110018 Numbers n such that the perfect deficiency of n (A109883) equals the perfect deficiency of n + 1. %C A110018 Are these the only terms? %K A110018 bref,more,nonn %O A110018 1,1 %A A110018 _Jason Earls_, Sep 03 2005