[seqfan] Re: Loose ends re Queens' graph

[Neil Sloane]

Brendan,  Good suggestion. I made some changes.

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 Mon, Dec 25, 2017 at 7:47 PM, Brendan McKay <Brendan.McKay at anu.edu.au>
wrote:

> What does "(in general position)" mean in A002564?  If it means that there
> are
> no restrictions on the positions apart from them forming a dominating set,
> then I suggest the words be removed.  "General position" is a phrase with
> specific meaning for geometric problems and I can't see how it would
> apply here.  I suspect that the intention is "not necessarily
> non-attacking",
> but nobody is going to understand that  without help.
>
> Cheers, Brendan.
>
>
>
> On 26/12/17 4:04 am, Neil Sloane wrote:
>
>> Don Knuth wrote yesterday pointing out that whereas A002563 gives 15
>> terms,
>> A002564 gives only 13 terms, and it should not be hard to extend the
>> shorter sequence.
>>
>> Same thing for A002567 (18 terms) vs A002568 (12 terms only).
>>
>> Since some of the people who worked on those sequences are on this list, I
>> mention this here.
>>
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>
>
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