[seqfan] Re: No 3 terms in Geom Progression
israel at math.ubc.ca
israel at math.ubc.ca
Thu Mar 1 22:37:53 CET 2012
No, my code is not only looking at integer ratios. [8, 12, 18] is one of
the 3-term geometric progressions it forbids.
Robert Israel
University of British Columbia
On Mar 1 2012, William Keith wrote:
>This may have seemed since this is the Encyclopedia of _Integer_ Sequences,
>but you may wish to specify that your sequence only forbids integer
>ratios. (At least, that is what the code is searching for.) An arithmetic
>progression in the integers has integer increment, but a geometric
>progression need not. The sequence 8,12,18 is a geometric progression with
>ratio 3/2.
>
>William
>
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