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 A197298 #16 Aug 04 2020 14:32:27
%S A197298 2,3,5,7,11,13,17,19,23,29,31,37,43,47,59,73,97,107,109,139,179,233,
%T A197298 263,277,283,337,347,409,419,547,643,683,809,811,821,823,863,983,991,
%U A197298 997,1031,1193
%N A197298 The Riemann primes of the theta type and index 2.
%C A197298 The sequence consists of the prime numbers p that are champions (left to right maxima) of the function |theta(p^2)-p^2|, where theta(p) is the Chebyshev theta function.
%H A197298 Dana Jacobsen, <a href="/A197298/b197298.txt">Table of n, a(n) for n = 1..173</a>
%H A197298 M. Planat and P. Solé, <a href="http://arxiv.org/abs/1109.6489">Efficient prime counting and the Chebyshev primes</a> arXiv:1109.6489 [math.NT], 2011.
%o A197298 (Perl) use ntheory ":all"; my($max,$f)=(0); forprimes { $f=abs(chebyshev_theta($_**2)-$_**2); if ($f > $max) { say; $max=$f; } } 10000; # _Dana Jacobsen_, Dec 29 2015
%Y A197298 Cf. A196668, A197186, A197297, A197299, A197300.
%K A197298 nonn
%O A197298 1,1
%A A197298 _Michel Planat_, Oct 13 2011