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A050272 Starting positions of strings of 2 9's in the decimal expansion of Pi. 1
44, 79, 459, 705, 747, 762, 763, 764, 765, 766, 777, 1063, 1073, 1385, 1395, 1428, 1477, 1532, 1730, 1981, 2000, 2071, 2114, 2218, 2241, 2285, 2335, 2436, 2644, 2796, 2910, 2949, 2950, 3089, 3217, 3294, 3508, 3564, 3570, 3673, 3678, 3710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

Index entries for sequences related to the number Pi

Eric Weisstein's World of Mathematics, Pi Digits

MATHEMATICA

q=8!; z=9; a=RealDigits[Pi, 10, q]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; If[b==z&&c==z, AppendTo[lst, n-1]], {n, q-1}]; lst (* Vladimir Joseph Stephan Orlovsky, Jun 19 2009 *)

Transpose[SequencePosition[RealDigits[Pi, 10, 4000][[1]], {9, 9}]][[1]]-1 (* The program uses the SequencePosition function from Mathematica version 10 *) (* Harvey P. Dale, Dec 27 2015 *)

CROSSREFS

Sequence in context: A039386 A043209 A043989 * A260201 A112721 A195816

Adjacent sequences:  A050269 A050270 A050271 * A050273 A050274 A050275

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified October 14 14:26 EDT 2019. Contains 328018 sequences. (Running on oeis4.)