Statistics of OEIS

[N. J. A. Sloane]

Cino said (in part):

(start)
If the rule of sequence acceptability is still that of being an adjunct to a 
scientific work you are performing, maybe we need a SequenceForFun Database 
(I created one in Yahoo) to lighten things
up a little.  This database will accept letters of the alphabet, pairs of 
numbers such as twin primes 2,3,3,5,5,7,11,13,17,19.. [that's
now A099609! - njas], decimal 
expansions,fractions,etc....
(end)

Me:  I dropped that requirement long ago!
And I'm not keen on the idea of having rival databases
on the web.  As long as you have a sequence of integers,
the OEIS is the place to send it.

About sequences of fractions: 
-----------------------------
As you know, they are entered in the OEIS
by listing the numerators and
denominators as separate (cross-linked) sequences.

I have started an index file, which at present is a plain text file,

   http://www.research.att.com/~njas/sequences/frac.txt

which lists sequences of fractions followed by the corresponding
pair of A-numbers for the numerators and denominators sequences.

Example:

1, 1/2, 3/8, 5/16, 35/128, 63/256, 231/1024, 429/2048, 6435/32768, 12155/65536, 46189/262144, ... = A001790/A046161

There is one entry per sequence.

Comments will be welcomed.

At present I just listed a few of the more important examples.

************************************************************
I hope that people will send me (by email) lots more entries
for this index.!
************************************************************

They are arranged in the order produced by the Unix "sort -n"
command.  But I assume that Google will pick up on this
file, and then if you type the sequence of fractions
into Google, you will get the A-numbers.
(That's why I haven't given any more information
than just the A-numbers.)

NJAS