A155591 Decimal expansion of log_7(21).

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

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for transcendental numbers

Example

1.5645750340535796138045501671749085361432279111867925950454...

Mathematica

RealDigits[Log[7, 21], 10, 100][[1]] (* Vincenzo Librandi, Aug 31 2013 *)

Prog

(PARI) default(realprecision, 100); log(21)/log(7) \\ G. C. Greubel, Sep 02 2018
(Magma) SetDefaultRealField(RealField(100)); Log(21)/Log(7); // G. C. Greubel, Sep 02 2018

Crossrefs

Cf. decimal expansion of log_7(m): A152713 (m=2), A152945 (m=3), A153103 (m=4), A153203 (m=5), A153463 (m=6), A153755 (m=8), A113211 (m=9), A154158 (m=10), A154179 (m=11), A154200 (m=12), A154294 (m=13), A154467 (m=14), A154572 (m=15), A154793 (m=16), A154857 (m=17), A154912 (m=18), A155059 (m=19), A155496 (m=20), this sequence, A155735 (m=22), A155824 (m=23), A155964 (m=24).

Sequence in context: A319015 A229481 A304490 * A152945 A201678 A245870

Adjacent sequences: A155588 A155589 A155590 * A155592 A155593 A155594

Keyword

nonn,cons

Author

N. J. A. Sloane, Oct 30 2009

Status

approved