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%I #14 Oct 28 2021 12:59:31
%S 29844570422669,58478215681891,86688602810119,114630988904000,
%T 142377417196364,169969662554551,197434994078331,224792606318600,
%U 252056733453928,279238341033925,306346140642929,333387204489157
%N Number of primes less than n*10^15.
%H Robert G. Wilson v, <a href="/A080124/b080124.txt">Table of n, a(n) for n = 1..10000</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(10^15*n) \\ _Charles R Greathouse IV_, Apr 29 2015
%Y Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080125, A080126, A080127, A080128, A080129.
%K nonn
%O 1,1
%A _Robert G. Wilson v_ and _Jeff Burch_, Jan 29 2003