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A054281 Positions of 5's in the decimal expansion of exp(1). 2
12, 16, 19, 30, 39, 51, 53, 75, 77, 80, 83, 92, 94, 117, 128, 137, 148, 152, 154, 189, 193, 195, 203, 219, 236, 270, 277, 287, 302, 303, 326, 333, 344, 412, 413, 415, 420, 432, 442, 444, 447, 457, 474, 478, 511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

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

CROSSREFS

Sequence in context: A334984 A334338 A334584 * A171955 A225071 A210577

Adjacent sequences:  A054278 A054279 A054280 * A054282 A054283 A054284

KEYWORD

nonn,base

AUTHOR

Simon Plouffe, Feb 20 2000

STATUS

approved

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Last modified October 21 14:42 EDT 2021. Contains 348155 sequences. (Running on oeis4.)