OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
FORMULA
Equals 1+A152914. - R. J. Mathar, Jul 29 2024
EXAMPLE
1.6826061944859852951345663592710522530246693998731672096600...
MATHEMATICA
RealDigits[Log[5, 15], 10, 120][[1]] (* Harvey P. Dale, Aug 14 2012 *)
PROG
(PARI) log(15)/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), this sequence, A154759 (m=16), A154850 (m=17), A154910 (m=18), A155035 (m=19), A155184 (m=20), A155553 (m=21), A155696 (m=22), A155821 (m=23), A155958 (m=24).
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved