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 A137194 #10 Dec 13 2019 02:57:00 %S A137194 13,21,37,69,93,133,141,189,205,237,261,285,349,357,421,429,477,517, %T A137194 541,613,621,645,685,693,717,741,781,805,885,925,933,957,981,997,1021, %U A137194 1029,1053,1093,1101,1117,1189,1197,1245,1261,1285,1309,1357,1365,1389,1485 %N A137194 Lucky numbers (A000959) which are congruent to 5 mod 8. %H A137194 Amiram Eldar, <a href="/A137194/b137194.txt">Table of n, a(n) for n = 1..10000</a> %Y A137194 Intersection of A000959 and A004770. %K A137194 nonn %O A137194 1,1 %A A137194 _N. J. A. Sloane_, Mar 07 2008