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A083611
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Starting positions of strings of 4 3's in the decimal expansion of Pi.
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2
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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; internal format)
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OFFSET
| 1,1
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LINKS
| Index entries for sequences related to the number Pi
Dave Andersen, Pi-Search Page
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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MATHEMATICA
| Transpose[StringPosition[StringDrop[ToString[N[Pi, 9! ]], 2], "3333"]][[1]] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 19 2009]
Flatten[Position[Partition[RealDigits[Pi, 10, 300000][[1]], 4, 1], _?(#== {3, 3, 3, 3}&)]]-1 (* From Harvey P. Dale, Oct 25 2011 *)
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CROSSREFS
| Cf. A083610 (three 3's), A083612 (five 3's).
Sequence in context: A134123 A049052 A202614 * A083612 A145683 A205890
Adjacent sequences: A083608 A083609 A083610 * A083612 A083613 A083614
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KEYWORD
| base,nonn
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AUTHOR
| Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 01 2003
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