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 A329148 #43 Dec 04 2019 14:58:50 %S A329148 1073,1537,1961,3277,4181,5713,7289,7373,8633,9193,9773,10001,10397, %T A329148 11729,13837,14393,14837,14893,15397,16153,16781,17777,17861,19517, %U A329148 20513,20609,20617,20737,21053,21253,21473,21953,22601,23141,23393 %N A329148 Composite hypotenuses of primitive Pythagorean triangles (A120961) that are not circumdiameters of non-Pythagorean primitive Heronian triangles (A285579). %C A329148 Inspired by comments from _Frank M Jackson_ in A285579. %C A329148 All of the 1378 terms in the b-file are the product of two distinct Pythagorean primes. %H A329148 Ray Chandler, <a href="/A329148/b329148.txt">Table of n, a(n) for n = 1..1378</a> (terms < 6*10^6, computed using files from Kurz link) %H A329148 Sascha Kurz, <a href="http://www.wm-archive.uni-bayreuth.de/index.php?id=554&L=3">Lists of primitive Heronian triples</a>, Bayreuth University. %Y A329148 Cf. A120961, A285579, A002144. %K A329148 nonn %O A329148 1,1 %A A329148 _Ray Chandler_, Dec 04 2019