A016587 Decimal expansion of log(21/2).

2, 3, 5, 1, 3, 7, 5, 2, 5, 7, 1, 6, 3, 4, 7, 7, 6, 8, 7, 0, 8, 3, 3, 6, 5, 8, 5, 8, 9, 0, 7, 5, 2, 8, 8, 6, 6, 2, 0, 9, 0, 7, 5, 1, 5, 3, 0, 4, 4, 3, 5, 5, 3, 8, 6, 0, 7, 3, 4, 0, 4, 4, 7, 4, 0, 8, 1, 6, 8, 0, 5, 3, 4, 0, 0, 0, 9, 8, 3, 5, 1, 9, 0, 5, 5, 4, 1, 0, 9, 2, 6, 4, 0, 5, 1, 8, 4, 9, 2

Offset

1,1

Links

Harry J. Smith, Table of n, a(n) for n = 1..20000

Index entries for transcendental numbers

Formula

Equals A016644 - A002162. - Michel Marcus, Apr 07 2020

Example

2.351375257163477687083365858907528866209075153044355386073404474081680...

Mathematica

RealDigits[Log[21/2], 10, 120][[1]] (* Vincenzo Librandi, Apr 07 2020 *)

Prog

(PARI) default(realprecision, 20080); x=log(21/2); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016587.txt", n, " ", d)); \\ Harry J. Smith, May 26 2009
(Magma) SetDefaultRealField(RealField(100)); Log(21/2); // Vincenzo Librandi, Apr 07 2020

Crossrefs

Cf. A016538 (continued fraction).

Cf. A002162 (log(2)), A016644 (log(21)).

Sequence in context: A010585 A295302 A110879 * A123217 A039704 A002752

Adjacent sequences: A016584 A016585 A016586 * A016588 A016589 A016590

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved