On the notion of "coefficient" (related to A046887).

[franktaw at netscape.net]

Well, maybe.  As Giovanni noted, it depends on how you define "coefficient".
 
My recommendation would be to change the description to say "non-zero coefficient". 
 
Franklin T. Adams-Watters

-----Original Message-----
From: Edwin Clark <eclark at math.usf.edu>
To: Giovanni Resta <g.resta at iit.cnr.it>
Cc: seqfan seqfan at ext.jussieu.fr

On Tue, 31 Jan 2006, Giovanni Resta wrote:
> Cy(4)= x^2+1
> 
> According to my personal (and probably erroneous) notion of "coefficient",
> the coefficients of Cy(4) are  1,0,1,  since Cy(4)=1*x^2+0*x+1*1

Note that the code given for the sequence is in Maple and uses the Maple
procedure "coeffs" which gives the nonzero coefficients of a polynomial.

If you allow 0 coefficients, then Cy(1) = x-1 = 0*x^2+x-1 would
also have 0 as a coefficient.
___________________________________________________
Try the New Netscape Mail Today!
Virtually Spam-Free | More Storage | Import Your Contact List
http://mail.netscape.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.seqfan.eu/pipermail/seqfan/attachments/20060131/5b529cce/attachment-0001.htm>