OFFSET
0,1
COMMENTS
The upper bound for the ratio of the number of 3x+1 steps to all steps in the Collatz iteration. - T. D. Noe, Apr 30 2010
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Emmanuel Jeandel, Michael Rao, An aperiodic set of 11 Wang tiles, arXiv:1506.06492 [cs.DM], 2015. See p. 10.
FORMULA
Equals log(2)/log(6) (A002162/A016629), that is, log(2)/(log(2)+log(3)). - Michel Marcus, Aug 18 2018
EXAMPLE
.38685280723454158687024613846782087646514185945710342838949...
MATHEMATICA
RealDigits[Log[6, 2], 10, 120][[1]] (* Harvey P. Dale, Sep 12 2012 *)
PROG
(PARI) default(realprecision, 100); log(2)/log(6) \\ G. C. Greubel, Sep 13 2018
(Magma) SetDefaultRealField(RealField(100)); Log(2)/Log(6); // G. C. Greubel, Sep 13 2018
CROSSREFS
Cf. decimal expansion of log_6(m): this sequence, A152935 (m=3), A153102 (m=4), A153202 (m=5), A153617 (m=7), A153754 (m=8), A154009 (m=9), A154157 (m=10), A154178 (m=11), A154199 (m=12), A154278 (m=13), A154466 (m=14), A154567 (m=15), A154776 (m=16), A154856 (m=17), A154911 (m=18), A155044 (m=19), A155490 (m=20), A155554 (m=21), A155697 (m=22), A155823 (m=23), A155959 (m=24).
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, Oct 30 2009
STATUS
approved