[seqfan] Re: A sequence in "The Penguin Dictionary of Curious and Interesting Geometry"

Neil Sloane njasloane at gmail.com
Fri Apr 12 16:54:52 CEST 2013


The sequence that Wells mentions is A001403.

Neil


On Fri, Apr 12, 2013 at 10:40 AM, David Newman <davidsnewman at gmail.com>wrote:

> Does anyone there have a copy of "The Penguin Dictionary of Curious and
> Interesting Geometry" easily available.  The article on Fano Plane has a
> sequence which I believe is not in the OEIS.  I can't check it now because
> I didn't pack my copy of the book (I didn't have access to a computer when
> I had the book in front of me.)  The sequence there is not the number of
> projective planes of order n, that's for sure.
>
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Dear Friends, I have now retired from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
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Email: njasloane at gmail.com


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