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 A097239 #17 Dec 30 2019 20:35:59 %S A097239 21125,36125,42250,54925,63375,72250,84500,105125,108375,109850, %T A097239 122825,126750,144500,147875,164775,169000,171125,190125,210125, %U A097239 210250,216750,219700,232375,245650,252875,253500,289000,295750,315375,325125,329550 %N A097239 Numbers n that are the hypotenuse of exactly 17 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 17 ways. %C A097239 If m is a term, then 2*m and p*m are terms where p is any prime of the form 4k+3. - _Ray Chandler_, Dec 30 2019 %H A097239 Ray Chandler, <a href="/A097239/b097239.txt">Table of n, a(n) for n = 1..10000</a> %Y A097239 Cf. A004144 (0), A084645 (1), A084646 (2), A084647 (3), A084648 (4), A084649 (5), A097219 (6), A097101 (7), A290499 (8), A290500 (9), A097225 (10), A290501 (11), A097226 (12), A097102 (13), A290502 (14), A290503 (15), A097238 (16), A290504 (18), A290505 (19), A097103 (22), A097244 (31), A097245 (37), A097282 (40), A097626 (67). %K A097239 nonn %O A097239 1,1 %A A097239 _James R. Buddenhagen_, Sep 17 2004 %E A097239 More terms from _Ray Chandler_, Sep 18 2004 %E A097239 Offset corrected by _Michel Marcus_, Aug 04 2017