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 A137190 #10 Dec 13 2019 02:56:45 %S A137190 1,9,25,33,49,73,105,129,169,193,201,241,273,289,297,321,361,385,393, %T A137190 409,433,489,529,537,553,577,601,673,729,745,769,777,801,841,873,897, %U A137190 937,961,993,1009,1041,1057,1105,1201,1209,1233,1249,1281,1329,1369,1401,1417,1441 %N A137190 Lucky numbers (A000959) which are congruent to 1 mod 8. %H A137190 Amiram Eldar, <a href="/A137190/b137190.txt">Table of n, a(n) for n = 1..10000</a> %Y A137190 Intersection of A000959 and A017077. %K A137190 nonn %O A137190 1,2 %A A137190 _N. J. A. Sloane_, Mar 07 2008