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 A275249 #10 Jul 24 2016 10:11:26 %S A275249 12,55,91,391,551,1271,1591,2773,3233,4891,5609,8051,8989,11227,12091, %T A275249 17399,18209,23393,24613,29893,31313,37627,38407,47897,51067,56153, %U A275249 59989,69133,71273,78391,82333,96091,98587,114857,117613,129551,133907,147431,152051 %N A275249 Sequence of pairwise relatively prime numbers of class P_5 (see comment in A275246). %Y A275249 Cf. A000040, A001248, A089581, A275246, A275248. %K A275249 nonn %O A275249 1,1 %A A275249 _Vladimir Shevelev_ and _Peter J. C. Moses_, Jul 21 2016