A102284 - OEIS

%I #16 Jun 14 2013 11:48:49

%S 2,3,4,6,4,7,11,5,16,5,23,8,6,20,11,18,38,29,12,28,6,24,30,10,12,38,

%T 44,24,100,17,48,72,18,14,21,106,52,29,27,75,44,7,37,26,36,14,136,140,

%U 10,59,72,42,28,15,89,47,24,34,24,110,80,72,26,46,66,141,15,10,80,68,88,38,51,20,47,66,16,107,25,58

%N Length of primitive cycle mentioned in A102280.

%H Geoffrey H. Morley, <a href="/A102284/b102284.txt">Table of n, a(n) for n = 1..10000</a>

%H J. C. Lagarias, <a href="http://pldml.icm.edu.pl:80/mathbwn/element/bwmeta1.element.bwnjournal-article-aav56i1p33bwm?q=bwmeta1.element.bwnjournal-number-aa-1990-56-1&amp;qt=CHILDREN-STATELESS">The set of rational cycles for the 3x+1 problem,</a> Acta Arith. 56 (1990), 33-53. - See Table 3.1 on page 41. But there are errors - a(12)[k=35] and a(25)[k=73] are incorrect.

%Y Cf. A102280, A226634.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Feb 19 2005

%E a(12) and a(25) corrected and more terms added by _Geoffrey H. Morley_, Mar 14 2013