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A054280 Positions of 4's in the decimal expansion of exp(1). 2
11, 15, 26, 35, 42, 55, 67, 78, 82, 98, 101, 104, 125, 135, 145, 171, 173, 208, 220, 225, 229, 232, 240, 241, 245, 256, 263, 266, 273, 276, 278, 279, 281, 294, 295, 325, 336, 337, 374, 375, 378, 381, 399, 422, 439 (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]], 4]] (* Vincenzo Librandi, Oct 07 2013 *)

CROSSREFS

Sequence in context: A158019 A228205 A256498 * A214863 A094766 A009407

Adjacent sequences:  A054277 A054278 A054279 * A054281 A054282 A054283

KEYWORD

nonn,base

AUTHOR

Simon Plouffe, Feb 20 2000

STATUS

approved

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Last modified May 25 15:44 EDT 2019. Contains 323572 sequences. (Running on oeis4.)