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 A291544 #13 Aug 27 2017 03:26:42
%S A291544 2,3,7,13,23,31,43,59,73,97,127,149,167,193,227,263,283,311,349,389,
%T A291544 421,463,509,557,601,653,709,769,823,881,947,997,1061,1123,1193,1277,
%U A291544 1367,1439,1531,1607,1693,1787,1861,1949,2017,2099,2179,2281,2377,2477
%N A291544 a(n) = Sum_{k=1..n} A054408(k).
%C A291544 Partial sums of A054408. All terms are prime.
%H A291544 Seiichi Manyama, <a href="/A291544/b291544.txt">Table of n, a(n) for n = 1..1000</a>
%Y A291544 Cf. A000040, A054408, A291546.
%K A291544 nonn
%O A291544 1,1
%A A291544 _Seiichi Manyama_, Aug 26 2017