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A155553
Decimal expansion of log_5 (21).
22
1, 8, 9, 1, 6, 6, 8, 1, 4, 9, 6, 0, 8, 1, 5, 2, 8, 5, 1, 8, 9, 7, 8, 8, 2, 7, 0, 4, 8, 1, 8, 4, 1, 2, 3, 2, 4, 1, 4, 1, 2, 2, 5, 3, 2, 9, 5, 8, 4, 0, 0, 0, 3, 3, 8, 3, 6, 6, 2, 9, 2, 8, 9, 2, 3, 4, 6, 6, 2, 4, 3, 6, 3, 9, 2, 4, 4, 1, 3, 2, 6, 3, 9, 3, 5, 9, 7
OFFSET
1,2
EXAMPLE
1.8916681496081528518978827048184123241412253295840003383662...
MATHEMATICA
RealDigits[Log[5, 21], 10, 100][[1]] (* Vincenzo Librandi, Aug 31 2013 *)
PROG
(PARI) log(21)/log(5) \\ Charles R Greathouse IV, May 15 2020
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), A155184 (m=20), this sequence, A155696 (m=22), A155821 (m=23), A155958 (m=24).
Sequence in context: A367732 A132718 A154904 * A302765 A053463 A073636
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved