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%I #11 Mar 08 2020 22:47:32
%S 1,1,1,2,2,3,4,5,6,9,11,16,20,27,36,48,64,87,114,154,206,274,363,484,
%T 649,868,1159,1549,2052,2747
%N Normalized extreme values for "3x+1" trees of depth n.
%D D. Applegate and J. C. Lagarias, Distribution of 3x+1 trees, Experimental Mathematics 4 (1995),193-209.
%H J. C. Lagarias, <a href="http://www.cecm.sfu.ca/organics/papers/lagarias/paper/html/paper.html">The 3x+1 problem and its generalizations</a>, Amer. Math. Monthly, 92 (1985), 3-23.
%H <a href="/index/3#3x1">Index entries for sequences related to 3x+1 (or Collatz) problem</a>
%H Experimental Mathematics, <a href="http://www.emis.de/journals/EM/">Home Page</a>
%Y Cf. A045474-A045476.
%K nonn
%O 1,4
%A _N. J. A. Sloane_
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