PrimePi(10^23): A006880 and MathWorld disagreement

Max Alekseyev maxale at
Tue Feb 26 20:01:57 CET 2008

Neil, Eric, SeqFans,

The values for pi(10^23) listed at and at differ
dramatically. Moreover, MathWorld claims that the exact value of
pi(10^23) is known only up to +/- 1.

So, I wonder which value is correct and what is the current status of
pi(10^23) ?


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