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 A020888 #12 Jan 23 2020 12:54:51 %S A020888 1,2,3,3,4,5,5,6,6,7,7,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,15, %T A020888 15,16,17,17,18,18,19,19,20,20,21,21,21,21,22,22,23,23,24,24,25,25,26, %U A020888 26,27,27,28,28,29,29,30,30,30,30,31,31,32,33,33,33,33,34,34,35,35,35,35 %N A020888 Ordered set of (a + b - c)/2 as (a,b,c) runs through all primitive Pythagorean triples with a<b<c. %C A020888 n appears A068068(n) number of times. - _Lekraj Beedassy_, May 03 2006 %C A020888 Ordered inradii of primitive Pythagorean triangles. - _Lekraj Beedassy_, May 08 2006 %H A020888 Ray Chandler, <a href="/A020888/b020888.txt">Table of n, a(n) for n = 1..10000</a> %F A020888 a(n) = A020887(n)/2. %Y A020888 For values ordered by hypotenuse, see A014498. %K A020888 nonn %O A020888 1,2 %A A020888 _Clark Kimberling_ %E A020888 Offset corrected to 1 by _Ray Chandler_, Jan 23 2020