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 A102387 #12 Nov 14 2013 05:49:50 %S A102387 5,17,74,144,144,2003,2003,37929,82810,161449,712201,2401519,7339199, %T A102387 33662541 %N A102387 a(n) is the smallest number m such that 2^m contains the first n decimal digits of Pi. %F A102387 a(n) = A030000(A011545(n)). %e A102387 The first number is 5 because 2^5 is 32, which contains 3, the first digit of Pi. %Y A102387 Cf. A030000, A011545. %K A102387 base,nonn %O A102387 1,1 %A A102387 Sergei Bernstein (sergeibernstein(AT)gmail.com), Feb 22 2005 %E A102387 a(11)-a(14) from _Giovanni Resta_, Nov 14 2013