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 A188755 #10 Mar 30 2012 17:40:29 %S A188755 10267951,38248981,39547171,54637831,123771511,264350521,284166877, %T A188755 317712877,585281791,842220289,1480849831,2144961253,2385076987, %U A188755 3256366051,3363763231,3383477191,3637831753,4042578403,5541525331 %N A188755 Strong pseudoprimes to bases 11, 13 and 17. %C A188755 Intersection of A020237, A020239 and A020243. %H A188755 <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a> %Y A188755 Cf. A074773. %K A188755 nonn %O A188755 1,1 %A A188755 _R. J. Mathar_, Apr 09 2011, Mar 08 2012