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 A157184 #5 Sep 11 2018 08:56:31
%S A157184 29,109,193,541,673,709,3257,4201,6217,8269,9109,10957,12637,18013,
%T A157184 22717,23557,23689,27329,33413,45553,47737,48889,48953,55001,55117,
%U A157184 56473,56737,59509,59921,62297,65393,67061,68909,75577,83477,84221
%N A157184 Lesser of two Pythagorean primes for which the Pythagorean triangles have the same area.
%H A157184 Shiv K. Gupta, <a href="https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;d5ff2a3a.1708">Areas of Pythagorean Triangles</a>, post to NMBRTHRY list, Dec 23 2008
%F A157184 A157184 = { A002144(k) | exists m>k : A145010(m)=A145010(k) }
%o A157184 (PARI) {Q=Qfb(1,0,1); forprime(p=5,10^5, p%4==1|next; t=qfbsolve(Q,p); A=t[1]*t[2]*(t[1]^2-t[2]^2); fordiv( A,d, if( issquare(d^2+(2*A/d)^2,&q) && isprime(q) && q>p, print1(p", ");break)))}
%K A157184 nonn
%O A157184 1,1
%A A157184 _David Broadhurst_, Feb 26 2009