[seqfan] R: Number of real roots of polynomial with coefficients +-1, or 0, +-1
luca.petrone at libero.it
Thu Feb 23 21:28:00 CET 2017
For A282691 the sequence goes on as follows, up to n=17 :
so, apparently there is a mistake for n=7 which IMHO is 5 instead of 3, and
the "nice" sequence conjectured is not respected.
>Da: "Neil Sloane" <njasloane at gmail.com>
>Data: 23/02/2017 19.34
>A: "Sequence Fanatics Discussion list"<seqfan at list.seqfan.eu>
>Ogg: [seqfan] Number of real roots of polynomial with coefficients +-1, or 0,
>https://oeis.org/A282691, A282692, A282693 all need more terms!
>Seqfan Mailing list - http://list.seqfan.eu/
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