Boolean search now available

[Brendan McKay]

* N. J. A. Sloane <njas at research.att.com> [030418 06:50]:
> You can search for 
> P AND Q,  P OR Q,  or  P BUT NOT Q
> 
> The program is ready for testing by friendly users.

It's a nice advance.  However, having the names of the sequences
displayed beside the sequence numbers would make it even nicer.
 
Is it too hard to have real boolean expressions?
(quasigroup OR loop) NOT latin

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While I'm on the subject of the search engine, here is another thing
that could be better.  Try searching for "Latin square" in the
regular word/phrase lookup.  About half the output lines look like
this with various sequence numbers:

"%H A001070 Index entries for sequences related to Latin squares and rectangles
(The text here consists entirely of a link.)

In most cases the same sequences are listed also with other hits.

I'm not sure exactly what I'm suggesting, but perhaps when the
hit is on the %H field but there was already a hit on another field
for the same sequence, then the %H line doesn't need to be mentioned.

Brendan.