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A155687 Decimal expansion of log_20 (21). 23
1, 0, 1, 6, 2, 8, 6, 5, 5, 6, 9, 1, 3, 0, 2, 8, 0, 5, 4, 5, 6, 7, 2, 4, 0, 2, 5, 6, 2, 1, 6, 9, 3, 5, 9, 6, 3, 3, 0, 4, 0, 2, 6, 9, 7, 2, 5, 7, 0, 0, 1, 0, 8, 2, 1, 5, 0, 8, 4, 1, 2, 7, 3, 6, 8, 4, 8, 3, 9, 0, 7, 4, 0, 8, 7, 1, 0, 9, 8, 8, 7, 6, 4, 5, 1, 2, 1, 0, 6, 3, 8, 5, 2, 9, 4, 6, 3, 0, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

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

EXAMPLE

1.0162865569130280545672402562169359633040269725700108215084...

MATHEMATICA

RealDigits[Log[20, 21], 10, 100][[1]] (* Vincenzo Librandi, Sep 05 2013 *)

CROSSREFS

Cf. decimal expansion of log_20(m): A152821 (m=2), A153035 (m=3), A153124 (m=4), A153454 (m=5), A153610 (m=6), A153630 (m=7), A153872 (m=8), A154019 (m=9),  A154170 (m=10), A154191 (m=11), A154212 (m=12), A154433 (m=13), A154492 (m=14), A154705 (m=15), A154838 (m=16), A154900 (m=17), A154976 (m=18), A155115 (m=19), this sequence, A155789 (m=22), A155907 (m=23), A156015 (m=24).

Inverse of A155532.

Sequence in context: A254868 A071874 A011331 * A021618 A085589 A259931

Adjacent sequences:  A155684 A155685 A155686 * A155688 A155689 A155690

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane, Oct 30 2009

STATUS

approved

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Last modified October 14 00:10 EDT 2019. Contains 327990 sequences. (Running on oeis4.)