%I A050209
%S A050209 153,983,3503,3992,4508,6116,6803,6963,8366,11730,12527,12611,12700,
%T A050209 12701,13597,14375,15190,16732,16733,19627,22270,22897,23208,23244,
%U A050209 23660,25205,25448,25752,27053,29492,29687,29810,31281,31488,32498
%N A050209 Starting positions of strings of 3 1's in the decimal expansion of Pi.
%H A050209 <a href="Sindx_Ph.html#Pi314">Index entries for sequences related to 
               the number Pi</a>
%H A050209 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PiDigits.html">Link to a section of The World of Mathematics.</a>
%t A050209 a=RealDigits[Pi,10,9! ];lst={};Do[b=a[[1]][[n]];c=a[[1]][[n+1]];d=a[[1]][[n+2]];
               If[b==1&&c==1&&d==1,AppendTo[lst,n-1]],{n,9!-2}];lst [From Vladimir 
               Orlovsky (4vladimir(AT)gmail.com), Jun 02 2009]
%Y A050209 Sequence in context: A066528 A046197 A056733 this_sequence A109142 A014576 
               A087414
%Y A050209 Adjacent sequences: A050206 A050207 A050208 this_sequence A050210 A050211 
               A050212
%K A050209 nonn
%O A050209 1,1
%A A050209 Eric Weisstein (eric(AT)weisstein.com)