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 A158209 #5 Jul 22 2014 22:08:57 %S A158209 0,2,2,1,2,2,1,2,2,1,3,2,1,0,1,0,1,1,2,0,4,1,0,0,0,1,1,3,1,1,1,1,0,1, %T A158209 0,4,0,2,2,0,0,0,6,3,1,0,1,0,1,2,1,1,0,1,0,1,1,1,1,0,1,3,2,3,1,1,1,2, %U A158209 0,1,1,1,1,1,1,2,0,0,0,0,1,1,2,2,0,2,0,0,2,1,1,0,1,0,2,1,1,0,0,1,1,1,0,2,1 %N A158209 The number of consecutive prime pairs with 10-gap in n-th century. %e A158209 Of 14 primes in 10th century, only 919 and 929 are consecutive primes with 10-gap, so a(10)=1. %K A158209 nonn %O A158209 1,2 %A A158209 _Ki Punches_, Mar 13 2009 %E A158209 Edited and corrected by _Ray Chandler_, May 23 2009