OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
FORMULA
Equals 2/A020860. - Hugo Pfoertner, Apr 17 2024
EXAMPLE
0.71241437421604435302835415600258105859551432554562740007915...
MATHEMATICA
RealDigits[Log[7, 4], 10, 100][[1]] (* Vincenzo Librandi, Aug 31 2013 *)
PROG
(PARI) default(realprecision, 100); log(4)/log(7) \\ G. C. Greubel, Sep 02 2018
(Magma) SetDefaultRealField(RealField(100)); Log(4)/Log(7); // G. C. Greubel, Sep 02 2018
CROSSREFS
Cf. decimal expansion of log_7(m): A152713 (m=2), A152945 (m=3), this sequence, A153203 (m=5), A153463 (m=6), A153755 (m=8), A113211 (m=9), A154158 (m=10), A154179 (m=11), A154200 (m=12), A154294 (m=13), A154467 (m=14), A154572 (m=15), A154793 (m=16), A154857 (m=17), A154912 (m=18), A155059 (m=19), A155496 (m=20), A155591 (m=21), A155735 (m=22), A155824 (m=23), A155964 (m=24).
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved