A016638 -id:A016638 - cp's OEIS frontend

A154580 Decimal expansion of log_10 (15).

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

Offset: 1

N. J. A. Sloane, Oct 30 2009

			1.1760912590556812420812890085306222824319389827285873235194...

Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Index entries for transcendental numbers

Cf. decimal expansion of log_10(m): A007524 (m=2), A114490 (m=3), A114493 (m=4), A153268 (m=5), A153496 (m=6), A153620 (m=7), A153790 (m=8), A104139 (m=9), A154182 (m=11), A154203 (m=12), A154368 (m=13), A154478 (m=14), this sequence, A154794 (m=16), A154860 (m=17), A154953 (m=18), A155062 (m=19), A155522 (m=20), A155677 (m=21), A155746 (m=22), A155830 (m=23), A155979 (m=24).

RealDigits[Log[10, 15], 10, 100][[1]] (* Vincenzo Librandi, Sep 11 2013 *)

log(15)/log(10) \\ Charles R Greathouse IV, Mar 17 2018

Equals A016638 / A002392 = (1+A152914)/(1+A152675). - R. J. Mathar, Jul 29 2024

A016443 Continued fraction for log(15).

Original entry on oeis.org

2, 1, 2, 2, 2, 1, 5, 2, 2, 1, 3, 3, 2, 58, 8, 1, 2, 1, 1, 4, 1, 1, 165, 1, 1, 7, 3, 1, 4, 7, 3, 2, 8, 2, 1, 1, 4, 23, 2, 8, 2, 2, 3, 2, 1, 13, 1, 2, 1, 3, 58, 3, 1, 3, 2, 3, 4, 2, 1, 110, 4, 3, 25, 1, 5, 1, 4, 24, 3, 2, 7, 1, 1, 2, 1, 1, 5

Offset: 1

N. J. A. Sloane

			2.708050201102210065996004570... = 2 + 1/(1 + 1/(2 + 1/(2 + 1/(2 + ...)))). - _Harry J. Smith_, May 16 2009

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

Cf. A016638 Decimal expansion. - Harry J. Smith, May 16 2009

ContinuedFraction[Log[15],100] (* Harvey P. Dale, May 15 2019 *)

{ allocatemem(932245000); default(realprecision, 21000); x=contfrac(log(15)); for (n=1, 20000, write("b016443.txt", n, " ", x[n])); } \\ Harry J. Smith, May 16 2009

cp's OEIS Frontend

A154580 Decimal expansion of log_10 (15).

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