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%I #14 Oct 28 2021 12:59:31
%S 2623557157654233,5153329362645908,7650011911220803,10125681208311322,
%T 12585956566571620,15034102021263820,17472251499627256,
%U 19901908567967065,22324189231374849,24739954287740860
%N Number of primes less than n*10^17.
%H Robert G. Wilson v, <a href="/A080126/b080126.txt">Table of n, a(n) for n = 1..1000</a>
%H Thomas R. Nicely, <a href="https://faculty.lynchburg.edu/~nicely/index.html">Some Results of Computational Research in Prime Numbers</a> [See local copy in A007053]
%H Tomás Oliveira e Silva, <a href="http://sweet.ua.pt/tos/primes.html">Tables of values of pi(x) and of pi2(x)</a>
%o (PARI) a(n)=primepi(10^17*n) \\ _Charles R Greathouse IV_, Apr 29 2015
%Y Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080127, A080128, A080129.
%K nonn
%O 1,1
%A _Robert G. Wilson v_ and _Jeff Burch_, Jan 29 2003
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