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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).
1
31, 47, 62, 63, 71, 79
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..6.
CROSSREFS
Sequence in context:
A014313
A095318
A130096
*
A270781
A075586
A033221
Adjacent sequences:
A229621
A229622
A229623
*
A229625
A229626
A229627
KEYWORD
nonn
,
more
,
hard
AUTHOR
Max Alekseyev
, Sep 27 2013
STATUS
approved
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Last modified September 18 02:36 EDT 2024. Contains 375995 sequences. (Running on oeis4.)