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 A318575 #18 Apr 19 2022 01:20:29 %S A318575 32918611718880,284239560530875680 %N A318575 Areas of primitive Heron triangles with square sides. %H A318575 P. Stanica, S. Sarkar, S. S. Gupta, S. Maitra, N. Kar. <a href="http://hdl.handle.net/10945/38838">Counting Heron Triangles</a>, Integers 13 (2013), A3. %H A318575 R. Rathbun, <a href="https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;e7c96423.1804">Second primitive Heron triangle with square sides found</a>, NMBRTHRY, 2018. %e A318575 a(1) is the area of the Heron triangle with sides 1853^2, 4380^2, 4427^2. %e A318575 a(2) is the area of the Heron triangle with sides 11789^2, 68104^2, 68595^2. %Y A318575 Cf. A046079, A221836, A221837, A221838, A223941, A237518. %K A318575 bref,nonn,hard,more %O A318575 1,1 %A A318575 _Max Alekseyev_, Aug 29 2018 %E A318575 a(1) was found by Stanica et al. (2013). %E A318575 a(2) was found by _Randall L Rathbun_ (2018).