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There are prime counts up to 1e16 with a step of 1e9

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  • Andrey Kulsha
    http://www.primefan.ru/stuff/primes/pi_1e16.zip (19 Mb) The archive contains the data file with 2-byte differences between the successive values of
    Message 1 of 1 , Feb 19, 2011
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      http://www.primefan.ru/stuff/primes/pi_1e16.zip (19 Mb)

      The archive contains the data file with 2-byte differences between the successive values of Round[(pi(x)-li(x))*3/2], and also a small delphi program to generate a plain text file.

      The multiplier of 3/2 allows:
      1) to fit the 2-byte range [-32768..+32767] for the differences
      2) to compute li(x) with an absolute error of up to 1/6, so the Ramanujan method with extended floating point arithmetics works well up to at least 1e18

      Best regards,

      Andrey

      [Non-text portions of this message have been removed]
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