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 A112679 #7 Jan 21 2020 13:47:24 %S A112679 8,16,20,28,32,36,44,48,52,64,68,76,88,92,96,100,104,108,116,124,128, %T A112679 136,148,152,160,164,172,184,188,192,196,200,204,212,216,228,232,236, %U A112679 244,248,256,268,276,280,284,292,296,300,316,320,324,328,332,336,344 %N A112679 Even numbers which form exclusively the shortest side of primitive Pythagorean triangles. %C A112679 Numbers that are in A081925 (even short legs) but not in A081935 (even long legs). %H A112679 Ray Chandler, <a href="/A112679/b112679.txt">Table of n, a(n) for n = 1..10000</a> %Y A112679 Cf. A081925, A081935. %K A112679 nonn %O A112679 1,1 %A A112679 _Lekraj Beedassy_, Dec 30 2005 %E A112679 Corrected and extended by _Ray Chandler_, Jan 02 2006