--- Pat Naughtin <[EMAIL PROTECTED]> wrote:
> On 2008/04/26, at 9:43 AM, Ziser, Jesse wrote:
> > The Online Encyclopedia of Integer Sequences calls it the
> > "Hyperinflation Sequence for Banknotes".
> > http://www.research.att.com/~njas/sequences/A051109
>
>
> That is surely a fancy name for a relatively simple series. I wonder
> whether the choice of the (1, 2, 5,
) series has anything to do with
> limiting how many coins or notes are given as change during a cash
> transaction. I find the (1, 2, 5,
) series easy to handle for this
> purpose than the (1, 5, 10, 25, 50,
) coins used in the USA, but this
> may only be because I am more familiar with Australian coins.
I don't disagree with you. I can see how the U.S. system of denominations
might not be the best.
I wonder whether the fact that the US was one of the first countries to use
decimal currency means
we are likely to have a less refined system than others. Incidentally, the
"50" in that sequence
is very rare. I've only seen a few half-dollar coins in my life. The dollar
coins were pretty
rare too, until they were recently reintroduced in "golden" form.
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