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 A226280 #19 Jun 04 2013 13:17:10 %S A226280 6,6,6,6,6,6,6,496,496,496,6,6,6,496,6,6 %N A226280 The perfect numbers produced by the aspiring numbers (A063769). %e A226280 The aspiring number 25, whose aliquot sequence (25 -> 6) terminates in 6, which is a perfect number. %Y A226280 Cf. A000396 (perfect numbers), A063769 (aspiring numbers). %K A226280 nonn %O A226280 1,1 %A A226280 _Robert Price_, Jun 03 2013