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A152821
Decimal expansion of log_20 (2).
22
2, 3, 1, 3, 7, 8, 2, 1, 3, 1, 5, 9, 7, 5, 9, 1, 7, 4, 2, 6, 3, 6, 9, 7, 7, 0, 1, 0, 9, 7, 6, 4, 0, 4, 9, 5, 8, 9, 0, 9, 6, 5, 5, 0, 7, 3, 7, 3, 5, 6, 5, 8, 6, 1, 8, 3, 9, 6, 1, 7, 7, 9, 4, 1, 1, 3, 5, 2, 4, 5, 5, 4, 0, 3, 0, 1, 5, 8, 3, 8, 4, 7, 1, 3, 9, 6, 5, 5, 8, 4, 0, 4, 4, 7, 5, 3, 9, 2, 5
OFFSET
0,1
FORMULA
Equals A002162 / A016643 = 1/A155172. - R. J. Mathar, Aug 13 2024
EXAMPLE
.23137821315975917426369770109764049589096550737356586183961...
MATHEMATICA
RealDigits[Log[20, 2], 10, 100][[1]] (* Vincenzo Librandi, Sep 05 2013 *)
PROG
(PARI) log(2)/log(20) \\ Charles R Greathouse IV, Aug 06 2020
CROSSREFS
Cf. decimal expansion of log_20(m): this sequence, 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), A155687 (m=21), A155789 (m=22), A155907 (m=23), A156015 (m=24).
Sequence in context: A209567 A208338 A236918 * A071943 A357329 A062869
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved