Thread: Triple Double
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Old 2007-05-31, 21:46   #5
m_f_h's Avatar
Feb 2007

24·33 Posts
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Congrats! What an example of perseverance !
(For novices it would be nice to know an explicit formula linking the small numbers to the big number....)
Also, nice Cunningham chain of length 6 - and you would have qualified even by counting it only as 1!
Retrospectively, wouldn't that have been an efficient sieving criterion ? (By requiring to have a chain of length 6, you can advance in steps of 6 when scanning n-values. But I don't know if one could expect a candidate with the chain [2,3,4,5,6,7] - what's the relative frequency of such among "good candidates" ?)

Last fiddled with by m_f_h on 2007-05-31 at 21:50
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