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 A115613 #2 Mar 30 2012 17:22:41 %S A115613 0,0,0,8,243,5222,140667 %N A115613 Number of 8-tuples of primes in arithmetic progression less than 10^n. %D A115613 See A113827 %e A115613 The least 8-tuple is {199, 409, 619, 829, 1039, 1249, 1459, 1669}, which is also the beginning of the least 10-tuple. %Y A115613 Cf. A113827 (prime beginning minimal n-tuple of primes in AP), A115608-A115612. %K A115613 nonn %O A115613 1,4 %A A115613 _T. D. Noe_, Jan 25 2006