%I #6 Dec 04 2018 15:03:15
%S 23,24,32,34,42,43
%N Two digit numbers generated from the set {2,3,4}.
%C From a quiz.
%D K. Russell and P. Carter, Number Puzzles, W. Foulsham and Co. Ltd. (1993).
%t FromDigits/@Flatten[{#,Reverse[#]}&/@Subsets[{2,3,4},{2}],1]//Sort (* _Harvey P. Dale_, Dec 04 2018 *)
%K fini,full,nonn,base
%O 1,1
%A Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 14 2006