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 A113872 #18 Jun 14 2014 09:26:56 %S A113872 2,3,7,23,29,157,907,1669,1879,2089,60881279,147692870693,15293983, %T A113872 834172688773,894476586329191,1275290173878841,259268969935081, %U A113872 1027994118842320951,1424014323186726053,1424014323196425743,28112131522925191409 %N A113872 Last term of n-term arithmetic progression of primes described in A033188 and A033189. %C A113872 The entries shown have been proved to be correct. %C A113872 See A033188 and A033189 for further information. %H A113872 Jens Kruse Andersen, <a href="http://primerecords.dk/aprecords.htm#minimal">Status of minimal arithmetic progressions of primes</a> %H A113872 <a href="/index/Pri#primes_AP">Index entries for sequences related to primes in arithmetic progressions</a> %F A113872 a(n) = A033189(n) + (n-1)*A033188(n). - _Jens Kruse Andersen_, Jun 14 2014 %K A113872 nonn %O A113872 1,1 %A A113872 _N. J. A. Sloane_, Jan 26 2006 %E A113872 a(19)-a(21) found by Jaroslaw Wroblewski, added by _Jens Kruse Andersen_, Jun 14 2014