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A083611 Starting positions of strings of 4 3's in the decimal expansion of Pi. 2
28467, 28468, 66846, 79979, 84542, 89085, 89086, 93498, 95730, 119658, 145459, 146043, 146044, 150803, 158335, 162369, 169124, 172951, 178501, 186291, 190241, 191664, 193042, 214252, 217711, 222180, 231023, 235521, 263318, 263955, 297544 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

Dave Andersen, Pi-Search Page

Eric Weisstein's World of Mathematics, Pi Digits.

Index entries for sequences related to the number Pi

MATHEMATICA

Transpose[StringPosition[StringDrop[ToString[N[Pi, 9! ]], 2], "3333"]][[1]] [From Vladimir Joseph Stephan Orlovsky, Jun 19 2009]

Flatten[Position[Partition[RealDigits[Pi, 10, 300000][[1]], 4, 1], _?(#== {3, 3, 3, 3}&)]]-1 (* Harvey P. Dale, Oct 25 2011 *)

CROSSREFS

Cf. A083610 (three 3's), A083612 (five 3's).

Sequence in context: A250992 A250630 A236595 * A083612 A231417 A145683

Adjacent sequences:  A083608 A083609 A083610 * A083612 A083613 A083614

KEYWORD

base,nonn

AUTHOR

Rick L. Shepherd, May 01 2003

STATUS

approved

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Last modified December 22 07:03 EST 2014. Contains 252328 sequences.