[seqfan] Re: Rounding in A075465

[Neil Sloane]

Unless Zak responds otherwise, I suggest we add a comment saying:

In case of a tie, round down.

That is consistent with the data, and is the usual convention anyway.

Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com


On Fri, Oct 2, 2015 at 2:55 AM, <israel at math.ubc.ca> wrote:

> A075465 is "Rounded average of first n primes", but nowhere does it say
> what type of rounding is used in case of a tie (i.e. when the actual
> average is half an odd integer). Since the Data gives a(2) = 2, 5/2 is
> being rounded to 2 rather than 3. That could indicate that ties are rounded
> down, or that ties are rounded to the nearest even integer. The next places
> the issue will arise in this sequence are a(1810) (which could be 7265 or
> 7266) and and a(2458) (10285 or 10286).
>
> Cheers, Robert
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>