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 A157338 #11 May 19 2019 00:13:02 %S A157338 2,101,211,307,401,503,601,701,809,907,1009,1103,1201,1301,1409,1511, %T A157338 1601,1709,1801,1901,2003,2111,2203,2309,2411,2503,2609,2707,2801, %U A157338 2903,3001,3109,3203,3301,3407,3511,3607,3701,3803,3907,4001,4111,4201,4327 %N A157338 First primes in successive prime centuries. %F A157338 a(n) ~ n log n. - _Charles R Greathouse IV_, Aug 20 2013 %t A157338 NextPrime/@Range[0,5000,100] (* _Harvey P. Dale_, Jan 11 2011 *) %K A157338 nonn %O A157338 1,1 %A A157338 _Ki Punches_, Feb 27 2009