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A083615
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Starting positions of strings of 3 4's in the decimal expansion of Pi.
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1
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2707, 2928, 3476, 3809, 3866, 4175, 4923, 5290, 5675, 6327, 6346, 9384, 9445, 13565, 18912, 21929, 23157, 23223, 25937, 26531, 27887, 28220, 28872, 34587, 35496, 36878, 37072, 37758, 37989, 39388, 39826, 42220, 42424, 45136, 45796, 46495
(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=4; 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. A050230 (two 4's), A083616 (four 4's).
Sequence in context: A205605 A205436 A031550 * A205750 A205472 A167836
Adjacent sequences: A083612 A083613 A083614 * A083616 A083617 A083618
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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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