A152747 Decimal expansion of log_9 (2).

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

Offset: 0

Author

N. J. A. Sloane, Oct 30 2009

Keywords

• nonn
• cons

Examples

			.31546487678572871854976355717138042714979282006594021393532...
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000
• Index entries for transcendental numbers

Crossrefs

Cf. decimal expansion of log_9(m): this sequence, A153205 (m=5), A153495 (m=6), A153619 (m=7), A153756 (m=8), A154160 (m=10), A154181 (m=11), A154202 (m=12), A154339 (m=13), A154469 (m=14), A154578 (m=15), A154859 (m=17), A154947 (m=18), A155061 (m=19), A155503 (m=20), A155676 (m=21), A155743 (m=22), A155829 (m=23), A155976 (m=24).

Programs

Magma

SetDefaultRealField(RealField(100)); Log(2)/Log(9); // G. C. Greubel, Aug 31 2018

Mathematica

RealDigits[Log[9, 2], 10, 100][[1]] (* Vincenzo Librandi, Sep 01 2013 *)

PARI

default(realprecision, 100); log(2)/log(9) \\ G. C. Greubel, Aug 31 2018

Formula

Equals Integral_{x=1..oo} 1/(3^x - 3^(-x)) dx. - Amiram Eldar, Jul 16 2020