A050245 Starting positions of strings of 2 6's in the decimal expansion of Pi.

117, 211, 257, 276, 309, 377, 516, 592, 892, 969, 981, 1216, 1287, 1331, 1528, 1550, 1772, 1809, 1894, 2440, 2441, 2542, 2747, 2920, 3051, 3091, 3127, 3151, 3152, 3210, 3746, 3875, 3995, 4000, 4001, 4026, 4066, 4129, 4162, 4192, 4279, 4296

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Eric Weisstein's World of Mathematics, Pi Digits

Index entries for sequences related to the number Pi

Mathematica

q=8!; z=6; 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 *)
SequencePosition[RealDigits[Pi, 10, 5000][[1]], {6, 6}][[All, 1]]-1 (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jun 11 2017 *)

Crossrefs

Sequence in context: A201021 A112877 A064180 * A351574 A031174 A146172

Adjacent sequences: A050242 A050243 A050244 * A050246 A050247 A050248

Keyword

nonn,base

Author

Eric W. Weisstein

Status

approved