%I A005664 M1428
%S A005664 1,1,2,5,12,41,53,306,665,15601,31867,79335,111202,190537,10590737,
%T A005664 10781274,53715833,171928773,225644606,397573379,6189245291,6586818670,
%U A005664 65470613321,137528045312,753110839881,5409303924479,6162414764360
%N A005664 Denominators of convergents to log_2 3.
%D A005664 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A005664 R. E. Crandall, On the 3x+1 problem, Math. Comp., 32 (1978) 1281-1292.
%H A005664 T. D. Noe, <a href="b005664.txt">Table of n, a(n) for n=0..200</a>
%H A005664 E. G. Dunne, <a href="DUNNE/TEMPERAMENT.HTML">Pianos and Continued Fractions</
               a>
%H A005664 Eric Weisstein's World of Music, <a href="http://www.ericweisstein.com/
               encyclopedias/music/CommaofPythagoras.html">Comma of Pythagoras</
               a>
%e A005664 log_2 3 = 1.5849625007211561814537389439...
%Y A005664 Cf. A005663, A028507, A020857.
%Y A005664 Sequence in context: A051436 A054581 A140440 this_sequence A009739 A062272 
               A127137
%Y A005664 Adjacent sequences: A005661 A005662 A005663 this_sequence A005665 A005666 
               A005667
%K A005664 nonn,frac,easy
%O A005664 0,3
%A A005664 N. J. A. Sloane (njas(AT)research.att.com), R. K. Guy
%E A005664 More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 16 2000