[seqfan] Re: What is a "Q unit fraction"?
Alex Meiburg
timeroot.alex at gmail.com
Sat Dec 22 20:46:18 CET 2018
Two guesses. First option: this is a "q-analog" of a unit fraction. There
are "q-analogs" of a variety of quantities, but I don't understand them
very well and I think you'd have to specify q? Maybe it ends up being
independent of q here, though.
Second option: you're misparsing the description, and instead of
decomposing into "Q unit fractions", it's decomposing into plain old unit
fractions, of which there are Q. Q is some variable that hasn't been
properly explained.
Actually, I'd bet on the second one, given that they say "exactly Q" unit
fractions, which really suggests that Q is a quantity of unit fractions.
On Sat, Dec 22, 2018, 11:30 AM Sean A. Irvine <sairvin at gmail.com wrote:
> A016013 Number of ways to write 1/n as a sum of exactly Q unit fractions.
>
> Not a lot of information to go on here.
>
> Sean.
>
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