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A083620
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Starting positions of strings of three 5's in the decimal expansion of Pi.
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1
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177, 1232, 1450, 2359, 2674, 7245, 7317, 7681, 10145, 10493, 11319, 14176, 17052, 18353, 18717, 18760, 19811, 20535, 20982, 21290, 22011, 22584, 23103, 24466, 24467, 24468, 24820, 24864, 26364, 26603, 30014, 31435, 32029, 32523, 33172
(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
| q=9!; z=5; a=RealDigits[Pi, 10, q]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; d=a[[1]][[n+2]]; If[b==z&&c==z&&d==z, AppendTo[lst, n-1]], {n, q-2}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 19 2009]
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CROSSREFS
| Cf. A050238 (two 5's), A083621 (four 5's).
Sequence in context: A169641 A147028 A105988 * A097317 A052461 A173375
Adjacent sequences: A083617 A083618 A083619 * A083621 A083622 A083623
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KEYWORD
| base,nonn
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AUTHOR
| Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 02 2003
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