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%I A229624 #5 Jul 16 2017 21:07:00
%S A229624 31,47,62,63,71,79
%N A229624 Positive integers n for which the length of shortest addition-subtraction chain is smaller than the length of shortest addition chain, i.e., A128998(n) < A003313(n).
%K A229624 nonn,more,hard
%O A229624 1,1
%A A229624 _Max Alekseyev_, Sep 27 2013

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