%I #8 Jun 18 2013 12:36:01
%S 11,17,19,34,69,84,85,168,171,176,179,228,252,285
%N Conjectured recordbreaking lengths, for ascending positive integers k, of primitive cycles of positive integers under iteration by the Collatzlike 3xk function.
%C A cycle is called primitive if its elements are not a common multiple of the elements of another cycle.
%C The 3xk function T_k is defined by T_k(x) = x/2 if x is even, (3xk)/2 if x is odd.
%C For primitive cycles, GCD(k,6)=1.
%Y k = A226687(n). The smallest integer in the T_k cycle(s) associated with a(n) is A226688(n).
%Y Cf. A226625, A226670.
%K nonn
%O 1,1
%A _Geoffrey H. Morley_, Jun 16 2013
