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A083643 Starting positions of strings of 4 9's in the decimal expansion of Pi. 2
762, 763, 764, 17988, 19437, 19446, 19447, 22753, 31900, 42095, 56988, 56989, 81293, 120564, 140953, 161862, 161863, 177122, 182604, 191104, 193034, 193035, 193036, 204198, 210140, 211794, 220507, 220568, 220569, 224317, 235425, 235775 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..32.

Index entries for sequences related to the number Pi

Dave Andersen, Pi-Search Page

Eric Weisstein's World of Mathematics, Pi Digits.

MATHEMATICA

Transpose[StringPosition[StringDrop[ToString[N[Pi, 9! ]], 2], "9999"]][[1]] [From Vladimir Joseph Stephan Orlovsky, Jun 19 2009]

CROSSREFS

Cf. A083642 (three 9's), A083644 (five 9's).

Sequence in context: A139664 A160033 A083642 * A083644 A061225 A210081

Adjacent sequences:  A083640 A083641 A083642 * A083644 A083645 A083646

KEYWORD

base,nonn

AUTHOR

Rick L. Shepherd, May 05 2003

STATUS

approved

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Last modified September 18 11:41 EDT 2014. Contains 246910 sequences.