files giving extended versions of sequences

[Robert G. Wilson v]

Everyone,

	I would like to see it as A000000(25)=?(>xx)? with the limit
to which the search ran inside the parentheses. In this way we know
precisely which sequence, which term and the limit all on one line,
hopefully unambiguous.

Bob.

franktaw at netscape.net wrote:

> One possible use for this would be cases where there is a hole in our 
> knowledge of the sequence.
>  
> Would you want to leave a blank line for a missing value, or just skip 
> past it?
>  
> Franklin T. Adams-Watters
>  
> -----Original Message-----
> From: N. J. A. Sloane <njas at research.att.com>
> To: dfs at research.att.com; seqfan at ext.jussieu.fr; se16 at btinternet.com; 
> bowerc at usa.net; Ray.Chandler at comcast.net; pdg at worldofnumbers.com; 
> deutsch at duke.poly.edu; seqfan at xyzzy.claranet.de; rkg at cpsc.ucalgary.ca; 
> dean at math.ucdavis.edu; Antti.Karttunen at iki.fi; 
> layman at calvin.math.vt.edu; mlb at well.com; j.mccranie at adelphia.net; 
> simon.plouffe at sympatico.ca; sellersj at math.psu.edu; 
> njas at research.att.com; smiley at math.uaa.alaska.edu; 
> somos at grail.cba.csuohio.edu; ralf at ark.in-berlin.de; 
> davidwwilson at comcast.net; rgwv at rgwv.com; david at research.att.com; 
> djr at nk.ca; rsc at swtch.com; noe at sspectra.com
> Cc: njas at research.att.com
> Sent: Fri, 19 May 2006 14:01:44 -0400 (EDT)
> Subject: files giving extended versions of sequences
> 
> 
> Often one wants more terms than are shown in the OEIS.
> 
> The new plan is to have plain text files for this, with names like 
> b000108.txt
> 
> They are indicated by an initial "b".
> 
> The format is a list of pairs  "n a(n)" with no commas, like this:
> (This is b000045.txt, the Fibonacci numbers A000045)
> 
> 0 0
> 1 1
> 2 1 
> 3 2   
> 4 3   
> 5 5   
> 6 8 
> 7 13   
> 8 21 
> 9 34
> ...
> 499 86168291600238450732788312165664788095941068326060883324529903470149056115823592713458328176574447204501
> 500 139423224561697880139724382870407283950070256587697307264108962948325571622863290691557658876222521294125
> 
> No commas, no text, no line breaks, one line per entry.
> Of course use the correct offset.
> If it is a list, usually the offset is 1.
> 
> How many terms?  It depends. I have been giving 10,000 terms
> for some of the basic sequences like A000005.
> For sequences which grow rapidly, like the Fibonacci numbers
> shown above, 500 terms may be enough.
> For a finite sequence (which is not too long), give them all.
> 
> So far I have these files:
> 
> -rw-r--r--    3 njas     njas       72115 May 19 12:56 b000005.txt
> -rw-r--r--    3 njas     njas       96752 May 19 07:37 b000010.txt
> -rw-r--r--    2 njas     njas      107876 May 19 07:37 b000040.txt
> -rw-r--r--    2 njas     njas       28899 May 19 07:38 b000045.txt
> -rw-r--r--    3 njas     njas       12483 May 19 07:40 b000108.txt
> -rw-r--r--    2 njas     njas      112102 May 19 13:33 b000201.txt
> -rw-r--r--    2 njas     njas       83635 May 19 12:58 b001223.txt
> -rw-r--r--    2 njas     njas       72815 May 19 07:40 b004718.txt
> -rw-r--r--    2 njas     njas      260773 May 19 07:41 b007318.txt
> -rw-r--r--    2 njas     njas      119962 May 19 13:38 b010060.txt
> -rw-r--r--    2 njas     njas       98458 May 19 13:10 b046901.txt
> -rw-r--r--    2 njas     njas        2892 May 19 13:24 b049076.txt
> -rw-r--r--    3 njas     njas        1972 Mar 29 15:36 b051169.txt
> -rw-r--r--    2 njas     njas       82409 May 19 07:39 b056239.txt
> -rw-r--r--    2 njas     njas        1524 May 19 13:16 b114835.txt
> -rw-r--r--    2 njas     njas        5652 May 19 13:13 b115569.txt
> -rw-r--r--    2 njas     njas        8394 May 19 13:07 b117153.txt
> -rw-r--r--    2 njas     njas        6945 May 19 13:08 b117154.txt
> -rw-r--r--    3 njas     njas        4136 May 19 07:39 b117825.txt
> 
> They will be indicated in the OEIS by lines like this:
> 
> %H A010060 Author's name, <a href="http://www.research.att.com/~njas/sequences/b010060.txt">Table 
> of n, a(n) for n = 0..16383</a>
> 
> and this will usually be the first %H line.
> 
> This is an experiment. Comments welcomed.
> 
> One application for this is so that one can listen to a good chunk
> of the sequence using the new "listen" button.
> 
> Contributions also welcomed, but use restraint. There are a lot of sequences
> in the OEIS where we need fewer terms, not more!
> 
> Neil Sloane
> 
> 
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