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 A219996 #11 May 13 2013 01:50:09 %S A219996 473268,726761,1773440,1808829,1919129,2131584,2165421,2339972, %T A219996 2390653,2518489,2802592,2844915,2982585,2996185,3183264,3193176, %U A219996 3250987,3418186,3428242,3633473,3909325,3953450,4280456,4303820,4373400,4658286,4728654,4978361,5165403,5254366 %N A219996 Centuries whose prime pattern is the same as prime pattern in the previous century. %C A219996 x belongs to this sequence if and only if the primality character of (100 * (x-1)) + k is the same as (100 * x) + k for all k = 0..99. %F A219996 a(n) ~ n. In particular there are x - 200x/log x + O(x/log^2 x) members of this sequence below x. - _Charles R Greathouse IV_, Dec 09 2012 %F A219996 a(n) = A190639(n) + 1. %Y A219996 Cf. A181098. %Y A219996 Cf. A190639 (lower century). %K A219996 nonn,base %O A219996 1,1 %A A219996 _V. Raman_, Dec 08 2012