login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A080127 Number of primes less than n*10^18. 21

%I #12 Oct 28 2021 12:59:31

%S 24739954287740860,48645161281738535,72254704797687083,

%T 95676260903887607,118959989688273472,142135049412622144,

%U 165220513980969424,188229829247429504,211172979243258278

%N Number of primes less than n*10^18.

%H Robert G. Wilson v, <a href="/A080127/b080127.txt">Table of n, a(n) for n = 1..100</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]

%o (PARI) a(n)=primepi(10^18*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, A080126, A080128, A080129.

%K nonn

%O 1,1

%A _Robert G. Wilson v_ and _Jeff Burch_, Jan 29 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 09:32 EDT 2024. Contains 371268 sequences. (Running on oeis4.)