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 A084027 #6 Aug 23 2014 13:13:04 %S A084027 1,66,423,9768,251025,1253142,7123907,169108896,903996009,10004500100, %T A084027 110067122011,2520202950144,13001275950013,280009919140028, %U A084027 7500003630000075,33760012606001792,170000242046000017 %N A084027 Row sums in A084024. %Y A084027 Cf. A084024, A084025, A084026, A084028. %K A084027 base,nonn %O A084027 1,2 %A A084027 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 23 2003 %E A084027 Corrected and extended by _Ray Chandler_, Jun 14 2003