OFFSET
1,1
COMMENTS
From a quiz.
REFERENCES
K. Russell and P. Carter, Number Puzzles, W. Foulsham and Co. Ltd. (1993).
MATHEMATICA
FromDigits/@Flatten[{#, Reverse[#]}&/@Subsets[{2, 3, 4}, {2}], 1]//Sort (* Harvey P. Dale, Dec 04 2018 *)
CROSSREFS
KEYWORD
fini,full,nonn,base
AUTHOR
Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 14 2006
STATUS
approved