- sorry folks did it again, I'm trying to write this up accurately and finding
it difficult. I know what I mean, but helping you understand what I mean can
When I said,
sum(2<n<=x) A(n)*A(n+2) where A(n) is the Mangoldt function (that is, log p
when n is a prime-power, otherwise zero). I've excluded 2 because it doesnt
appear in the prime pair sequence.
Evidently if you divide this by log n * log (n+2) you are left with a
I meant, dividing each term in the sum by the double log, rather than
dividing the sum by it because you dont then get the rational number!