The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A259648 a(n) = floor( prime(n)^3 / (n*log(n)) ). 0

%I #38 Sep 08 2022 08:46:13

%S 19,37,61,165,204,360,412,615,1059,1129,1698,2066,2151,2555,3356,4264,

%T 4362,5376,5973,6084,7250,7928,9242,11341,12162,12279,13129,13261,

%U 14141,19242,20270,22285,22399,26583,26688,28965,31330,32597,35090,37668,37773,43082

%N a(n) = floor( prime(n)^3 / (n*log(n)) ).

%F a(n) = floor( A030078(n) / (n*log(n))).

%t Table[Floor[Prime[n]^3/(n Log[n])], {n, 2, 30}]

%o (PARI) a(n) = floor(prime(n)^3/(n*log(n))); \\ _Michel Marcus_, Jul 02 2015

%o (Magma) [Floor((NthPrime(n))^3/(n*Log(n))): n in [2..60]]; // _Vincenzo Librandi_, Jul 03 2015

%Y Cf. A024702, A011757, A138672.

%K nonn

%O 2,1

%A _Ilya Gutkovskiy_, Jul 02 2015

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 May 20 03:57 EDT 2024. Contains 372703 sequences. (Running on oeis4.)