A054280 Positions of 4's in the decimal expansion of exp(1).

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

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: A228205 A343416 A256498 * A214863 A094766 A009407

Adjacent sequences: A054277 A054278 A054279 * A054281 A054282 A054283

Keyword

nonn,base

Author

Simon Plouffe, Feb 20 2000

Status

approved