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A050238
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Starting positions of strings of 2 5's in the decimal expansion of Pi.
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1
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130, 177, 178, 315, 809, 914, 1101, 1139, 1169, 1232, 1233, 1256, 1362, 1450, 1451, 1499, 1517, 1570, 1663, 1725, 1744, 2090, 2216, 2222, 2359, 2360, 2481, 2622, 2674, 2675, 3016, 3047, 3204, 3304, 3554, 3579, 3588, 3895, 4003, 4016, 4072
(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
Eric Weisstein's World of Mathematics, Pi Digits
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MATHEMATICA
| q=8!; z=5; a=RealDigits[Pi, 10, q]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; If[b==z&&c==z, AppendTo[lst, n-1]], {n, q-1}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 19 2009]
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CROSSREFS
| Sequence in context: A025373 A025364 A029704 * A115937 A138482 A138481
Adjacent sequences: A050235 A050236 A050237 * A050239 A050240 A050241
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KEYWORD
| nonn,base
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
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