A050238 - OEIS

A050238

Starting positions of strings of 2 5's in the decimal expansion of Pi.

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; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..41.

Eric Weisstein's World of Mathematics, Pi Digits

Index entries for sequences related to the number Pi

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 (* Vladimir Joseph Stephan Orlovsky, Jun 19 2009 *)

CROSSREFS

Sequence in context: A331629 A248943 A248649 * A115937 A365833 A298381

Adjacent sequences: A050235 A050236 A050237 * A050239 A050240 A050241

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein

STATUS

approved

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