The pi(x) table project aims at computing values of pi(x) for
values of x between 1.e17 and 1.e18 every 1.e14 (in a next phasis of
the project, higher values will be considered). Each computation value of
pi(x) is indexed by an integer I, representing the value x=I*1.e14.
For example, the computation of pi(2.122e17) corresponds to the index I=2122.
Each pi(x) value is checked, by computing pi(x+delta) with delta a small value compared to x, and then by checking the difference with a sieve. A pi(x) computation timing highly depends on your machine and your value of x; for x near 1.e18, each pi(x) computation and check lasts around 3 hours on a Pentium III 1000.
Reservations are made by ranges, by specifying your start and end index.
Instructions to choose your range :
Available ranges (the notation 2300-2340 means that indexes between 2300 and 2340 are free)No range available
All ranges have been reserved. A future computation will be soon available.