A016638 Decimal expansion of log(15).

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Examples

			2.708050201102210065996004570148713344173091912091267173647342225111673....
		

References

• M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 2.

Links

• Harry J. Smith, Table of n, a(n) for n = 1..20000
• M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
• Index entries for transcendental numbers

Crossrefs

Cf. A016443 (continued fraction).

Programs

Mathematica

RealDigits[Log[15], 10, 120][[1]] (* Vincenzo Librandi, Jun 21 2015 *)

PARI

default(realprecision, 20080); x=log(15); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016638.txt", n, " ", d)); \\ Harry J. Smith, May 16 2009

Formula

Equals A002391 + A016628. - R. J. Mathar, Jun 10 2024

Extensions

Final digits of sequence corrected using the b-file. - N. J. A. Sloane, Aug 30 2009