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Old 2008-07-12, 10:42   #4
Siemelink
 
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Jan 2006
Hungary

10C16 Posts
Default base 34

Base 34 has riesel = 6.
If (k mod 3) == 1 then for any n there is a factor 3. This eliminates k = 1 and k = 4.

k n
2 1
3 1
5 2
6 Riesel

covering set {5, 7}
odd n: 7
even n: 5
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