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 A215999 #10 Feb 11 2018 16:36:36 %S A215999 527207,535571,541181,555251,572281,575137,586589,589453,592343, %T A215999 689321,698311,731261,734263,761489,862177,880681,945767,1033423, %U A215999 1039763,1042931,1071419,1077751,1093633,1112731,1115929,1131943,1135129,1141531,1151167,1164043 %N A215999 Primes that are the sum of 401 consecutive primes. %H A215999 Syed Iddi Hasan, <a href="/A215999/b215999.txt">Table of n, a(n) for n = 1..10000</a> %Y A215999 Cf. A215991. %K A215999 nonn %O A215999 1,1 %A A215999 _Syed Iddi Hasan_, Aug 30 2012 %E A215999 More terms added from b-file by _Andrew Howroyd_, Feb 11 2018