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 A201000 #11 Jul 29 2022 22:05:44 %S A201000 3,11,139,1181629920803,85408181065579888274696997717587 %N A201000 Primes in the Lucas U(3,-2) sequence. %C A201000 The Lucas U(3,-2) sequence is 0, 1, 3, 11, 39, 139, 495, 1763, 6279, 22363..., A007482 with a leading zero. This sequence here contains U(3,-2,n) at indices n = 2, 3, 5, 23, 59, 107, 167, ... %H A201000 Wikipedia, <a href="http://en.wikipedia.org/wiki/Lucas_sequence">Lucas sequence</a> %Y A201000 Cf. A007482. %K A201000 nonn %O A201000 1,1 %A A201000 _R. J. Mathar_, Jan 08 2013