[seqfan] Re: Searching OEIS question

Neil Sloane njasloane at gmail.com
Mon May 20 23:18:39 CEST 2013


Frank, I could run a grep or sed command for you on
my private copy of the whole database, if you
send me a command to run


On Mon, May 20, 2013 at 4:35 PM, Frank Ruskey <ruskey at cs.uvic.ca> wrote:

> I am trying to find all "nested recurrence relations" that occur in OEIS.
> These have the form  a(n) = ....a(..... a ( ..... ) ..... )  where the
> parens are nested as shown.
> How to do this in a semi-intelligent fashion?  I started just trying to
> find entries
> that contained "a(a(".  The trouble is that the oeis seems to treat "(" as
> a wildcard.
> Is there some way to force it to recognize the "(" character?  Or search
> for the
> more general expression at the beginning of this message?  Thanks for any
> help.
> -Frank
>
> --
> ----------------------
> Frank Ruskey         e-mail: (last_name)(AT)cs(DOT)uvic(**DOT)ca
> Dept. of Computer Science        fax:    250-472-5708
> University of Victoria           office: 250-472-5794
> Victoria, B.C. V8W 3P6 CANADA    WWW: http://www.cs.uvic.ca/~(last_**name)<http://www.cs.uvic.ca/~(last_name)>
>
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-- 
Dear Friends, I have now retired from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com



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