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A083642 Starting positions of strings of three 9's in the decimal expansion of Pi. 1

%I

%S 762,763,764,765,2949,7759,8527,9962,11197,11382,13019,16687,17119,

%T 17561,17988,17989,18680,19437,19438,19446,19447,19448,19748,21579,

%U 22309,22753,22754,23989,24107,25584,26069,26490,27602,28122,28320

%N Starting positions of strings of three 9'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 Transpose[ StringPosition[ StringDrop[ ToString[ N[Pi, 28588]], 2], "999"]][[1]]

%t Flatten[With[{p=Partition[RealDigits[Pi,10,30000][[1]],3,1]},Position[p,{9,9,9}]]]-1 (* _Harvey P. Dale_, Jan 05 2013 *)

%Y Cf. A050272 (two 9's), A083643 (four 9's).

%K base,nonn

%O 1,1

%A _Rick L. Shepherd_, May 05 2003

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Last modified November 19 11:46 EST 2019. Contains 329319 sequences. (Running on oeis4.)