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 A113831 #7 Jun 13 2014 18:07:45 %S A113831 13,43,59,227,353,1439,4969,5179 %N A113831 Last term of a 2 X n generalized arithmetic progression (GAP) of primes with smallest last term. %H A113831 Jens Kruse Andersen, <a href="http://primerecords.dk/aprecords.htm">Primes in Arithmetic Progression Records</a> [May have candidates for later terms in this sequence.] %H A113831 Andrew Granville, <a href="http://www.dms.umontreal.ca/~andrew/PDF/PrimePatterns.pdf">Prime number patterns</a> %e A113831 Here is the beginning of Granville's table: %e A113831 n GAP Last term %e A113831 2 3+8i+2j 13 %e A113831 3 7+24i+6j 43 %e A113831 4 5+36i+6j 59 %e A113831 5 11+96i+30j 227 %e A113831 6 11+42i+60j 353 %e A113831 7 47+132i+210j 1439 %Y A113831 Cf. A113830, A113827, A113828, A005150. %K A113831 nonn,more %O A113831 2,1 %A A113831 _N. J. A. Sloane_, Jan 25 2006