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 A083603 Starting positions of strings of five 1's in the decimal expansion of Pi. 2

%I #14 Jan 16 2015 03:12:41

%S 32788,120459,141899,255945,255946,266894,365783,378301,663429,707038,

%T 740956,802226,821500,969110,973525,973670,1084126,1189427,1247619,

%U 1295214,1312579,1672127,1876791,2003018,2030728,2136234,2170463

%N Starting positions of strings of five 1's in the decimal expansion of Pi.

%H <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a>

%H Dave Andersen, <a href="http://www.angio.net/pi/piquery">Pi-Search Page</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PiDigits.html">Pi Digits.</a>

%t \$MaxPrecision=10^8;a=RealDigits[Pi,10,4*9! ];lst={};Do[b=a[[1]][[n]];c=a[[1]][[n+1]];d=a[[1]][[n+2]];e=a[[1]][[n+3]];f=a[[1]][[n+4]];If[b==1&&c==1&&d==1&&e==1&&f==1,AppendTo[lst,n-1]],{n,3*7!,4*9!-4}];lst (* _Vladimir Joseph Stephan Orlovsky_, Jun 07 2009 *)

%Y Cf. A083602 (four 1's), A083604 (six 1's).

%K base,nonn

%O 1,1

%A _Rick L. Shepherd_, May 01 2003

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Last modified June 12 18:11 EDT 2024. Contains 373359 sequences. (Running on oeis4.)