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 A104824 #15 Dec 14 2014 06:18:36
%S A104824 4159,5897,9323,8419,1693,8209,9749,5923,2089,2803,4211,7253,8111,
%T A104824 1117,7019,193,8521,6229,1097,6659,8233,7867,1201,9091,5669,4603,4861,
%U A104824 3607,4127,631,5881,5209,9209,4091,3643,5903,11,113,6521,1511,1609,9433
%N A104824 Primes from merging of 4 successive digits in decimal expansion of Pi.
%C A104824 Leading zeros permitted. - _Harvey P. Dale_, Dec 09 2013
%H A104824 Vincenzo Librandi, <a href="/A104824/b104824.txt">Table of n, a(n) for n = 1..1000</a>
%t A104824 With[{pi = FromDigits/@Partition[RealDigits[Pi, 10, 500][[1]], 4, 1]}, Select[pi, PrimeQ]] (* _Vincenzo Librandi_, Apr 21 2013 *)
%Y A104824 Cf. A104819-A104842.
%K A104824 nonn,base
%O A104824 1,1
%A A104824 _Zak Seidov_, Mar 27 2005