A004593 - OEIS

A004593

Expansion of e in base 2.

1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1

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OFFSET

2,1

COMMENTS

The first 19 digits are a reverse copy of the 7th through 25th digits of the binary expansion of Pi (A004601). - Dan Graham, May 03 2015

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 2..2000

EXAMPLE

10.10110111111000010...

MATHEMATICA

First@ RealDigits[N[E, 120], 2] (* Michael De Vlieger, May 05 2015 *)

PROG

(PARI) a(n)=exp(1)*2^(n-3)\1%2 \\ Charles R Greathouse IV, May 05 2015

CROSSREFS

Expansion of e in base b: this sequence (b=2), A004594 (b=3), A004595 (b=4), A004596 (b=5), A004597 (b=6), A004598 (b=7), A004599 (b=8), A004600 (b=9), A001113 (b=10), A170873 (b=16). - Jason Kimberley, Dec 05 2012

Sequence in context: A110247 A114607 A123110 * A094934 A245837 A245656

Adjacent sequences: A004590 A004591 A004592 * A004594 A004595 A004596

KEYWORD

nonn,cons,base

AUTHOR

N. J. A. Sloane

STATUS

approved

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