[seqfan] Re: A250001

[Neil Sloane]

I just approved Benoit's A261070, so that people
can make updates

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 Sat, Aug 8, 2015 at 2:50 PM, Jon Wild <wild at music.mcgill.ca> wrote:

> On Sat, 8 Aug 2015, Benoît Jubin wrote:
>
> I submitted a sequence (table) which counts the configurations with given
>> numbers of intersections. It is A261070.
>>
>> I hope T(4,1) is correct, and I think T(n,1) is not to hard to compute
>> from
>> T(0,0), T(1,0), ..., T(n-2,0) in a similar way:
>>
>
> By the way Benoît, your T(n,0) should give A00081. For T(4,1) (meaning
> only one pair of circles out of 4 intersects) I make the answer 15. You can
> see all 15 among the 2nd and 3rd rows of the image
> https://oeis.org/A241601/a241601.png
>
> Jon
>
>
>
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