EDITED - sequences related to x^x+p being prime

[cino hilliard]

H again Hugo,

> > Too bad we will never know if 444^444+5 is _really_  a prime.

I spoke too soon.

          GP/PARI CALCULATOR Version 2.2.6 (development CHANGES-1.756)
                i386 running cygwin (ix86 kernel) 32-bit version
              compiled: May 28 2003, gcc-3.2 20020927 (prerelease)
                (readline v4.3 enabled, extended help available)

                       Copyright (C) 2003 The PARI Group

PARI/GP is free software, covered by the GNU General Public License, and
comes WITHOUT ANY WARRANTY WHATSOEVER.

Type ? for help, \q to quit.
Type ?12 for how to get moral (and possibly technical) support.

   realprecision = 28 significant digits
   seriesprecision = 16 significant terms
   format = g0.28

parisize = 700000000, primelimit = 500000
>isprime(444^444+5)
%1 = 1

Took about 9 hours on  p4 2.53 ghz

_________________________________________________________________
Help STOP SPAM with the new MSN 8 and get 2 months FREE*  
http://join.msn.com/?page=features/junkmail