%I #6 Jun 18 2013 12:35:17
%S 1,11,17,19,23,131,311,467,3377,5137,66781,76085,143369
%N Integer k associated with the conjectured record-breaking maximal value A226681(n) of the minimal elements of primitive Collatz-like 3x-k cycles.
%Y Cf. A226666.
%K nonn
%O 1,2
%A _Geoffrey H. Morley_, Jun 16 2013