A053749 Positions of 5's in the decimal expansion of Pi.

5, 9, 11, 32, 49, 52, 62, 91, 110, 131, 132, 134, 142, 144, 159, 173, 178, 179, 180, 192, 211, 214, 226, 241, 253, 257, 273, 305, 316, 317, 326, 339, 346, 356, 368, 371, 380, 390, 395, 405, 412, 414, 416, 420

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for sequences related to the number Pi

Formula

a(n) = A037004(n) + 1. - Georg Fischer, May 31 2021

Mathematica

Flatten[Position[RealDigits[Pi, 10, 1000][[1]], 5]] (* Vincenzo Librandi, Oct 07 2013 *)

Crossrefs

Cf. A037004.

Sequence in context: A214262 A288143 A120228 * A099082 A062217 A331053

Adjacent sequences: A053746 A053747 A053748 * A053750 A053751 A053752

Keyword

nonn,base

Author

Simon Plouffe, Feb 20 2000

Status

approved