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Old 2006-01-19, 12:35   #14
Greenbank
 
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Jul 2005

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Quote:
Originally Posted by Greenbank
est(54) = 225950 (actual = 230143)
est(55) = 772429
est(56) = 280214
est(57) = 1253015

I might do n=56 as well, since it has fewer Octoproths than n=55. n=57 looks like a step too far.
n=55 [0,1E16] = 229947
n=55 [1E16,2E16] = 214250
n=55 [2E16,3E16] = 211102
n=55 [3E16,3.61E16] = 131672

Every 3-prp output by your program was indeed a prime! None failed the tests with PARI.

229947 + 214250 + 211102 + 131672 = 786971

est(54) = 225950 (actual = 230143)
est(55) = 772429 (actual = 786971)
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