[seqfan] Re: Number of real roots of polynomial with coefficients +-1, or 0, +-1

[Peter Munn]

It appears I sent the below message just before the named sequence was
deleted and recycled.  My comment was to suggest changing the sequence
definition - the result might even have been the author's intended
definition.  I think it would create a worthwhile variation on A282692,
whereas the sole added requirement of c_n != 0 seems not to have done.

Peter Munn

> Should A282693 specify also that c_0 != 0?
>
> Peter Munn
>
>> https://oeis.org/A282691, A282692, A282693 all need more terms!
>>
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