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A155184
Decimal expansion of log_5 (20).
22
1, 8, 6, 1, 3, 5, 3, 1, 1, 6, 1, 4, 6, 7, 8, 6, 1, 0, 1, 3, 4, 0, 2, 1, 3, 1, 3, 7, 5, 2, 7, 9, 3, 1, 2, 6, 4, 1, 3, 9, 5, 8, 3, 8, 6, 4, 1, 5, 9, 5, 2, 0, 8, 9, 8, 6, 4, 3, 9, 5, 2, 0, 7, 5, 9, 2, 1, 3, 2, 4, 1, 6, 5, 0, 7, 5, 7, 7, 1, 0, 1, 2, 1, 6, 7, 3, 9
OFFSET
1,2
FORMULA
Equals 1+A153101. - R. J. Mathar, May 25 2023
EXAMPLE
1.8613531161467861013402131375279312641395838641595208986439...
MATHEMATICA
RealDigits[Log[5, 20], 10, 100][[1]] (* Vincenzo Librandi, Aug 30 2013 *)
PROG
(PARI) log(20)/log(5) \\ Charles R Greathouse IV, Aug 28 2017
CROSSREFS
Cf. decimal expansion of log_5(m): A152675 (m=2), A152914 (m=3), A153101 (m=4), A153461 (m=6), A153616 (m=7), A153739 (m=8), A154008 (m=9), A154156 (m=10), A154177 (m=11), A154198 (m=12), A154265 (m=13), A154465 (m=14), A154564 (m=15), A154759 (m=16), A154850 (m=17), A154910 (m=18), A155035 (m=19), this sequence, A155553 (m=21), A155696 (m=22), A155821 (m=23), A155958 (m=24).
Sequence in context: A199070 A372268 A011009 * A153101 A281822 A130787
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved