sigma explosion

[Phil Carmody <thefatphil@yahoo.co.uk>]

Given that sigma(3221^12) is prime, I noticed the following inexplicable
explosion in run-time, apparantly to infinity -- i=11 is still running:

(10:26) gp > for(i=2,11,x=gettime();sigma(sigma(3221^12)^i);print(i,"
",gettime()))
2 10
3 30
4 50
5 70
6 80
7 110
8 120
9 150
10 190

That's in both 2.2.7 and 2.2.8 (development CHANGES-1.999)

Phil


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In the Device Manager, disable the SbcpHid device.
http://www.cs.princeton.edu/~jhalderm/cd3/


		
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