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 A097219 #17 Dec 30 2019 14:07:34 %S A097219 15625,31250,46875,62500,93750,109375,125000,140625,171875,187500, %T A097219 218750,250000,281250,296875,328125,343750,359375,375000,421875, %U A097219 437500,484375,500000,515625,562500,593750,656250,671875,687500,718750,734375 %N A097219 Numbers n that are the hypotenuse of exactly 6 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 6 ways. %C A097219 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 A097219 Ray Chandler, <a href="/A097219/b097219.txt">Table of n, a(n) for n = 1..10000</a> %Y A097219 Cf. A004144 (0), A084645 (1), A084646 (2), A084647 (3), A084648 (4), A084649 (5), A097101 (7), A290499 (8), A290500 (9), A097225 (10), A290501 (11), A097226 (12), A097102 (13), A290502 (14), A290503 (15), A097238 (16), A097239 (17), A290504 (18), A290505 (19), A097103 (22), A097244 (31), A097245 (37), A097282 (40), A097626 (67). %K A097219 nonn %O A097219 1,1 %A A097219 _James R. Buddenhagen_, Sep 17 2004 %E A097219 More terms from _Ray Chandler_, Sep 18 2004