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!)
A020935 Greatest k such that (k-th prime) < (5 times n-th prime). 1

%I #7 May 13 2013 12:04:25

%S 4,6,9,11,16,18,23,24,30,34,36,42,46,47,51,56,62,62,67,71,72,77,80,86,

%T 92,96,97,99,100,103,115,119,124,125,132,133,137,141,145,150,154,154,

%U 162,162,166,167,177,186,189,189,192,196,197,204,208,214,217,217,221

%N Greatest k such that (k-th prime) < (5 times n-th prime).

%o (PARI) a(n) = primepi(5*prime(n)) \\ _Michel Marcus_, May 13 2013

%Y Cf. A020900, A020901, A020934-A020940.

%K nonn

%O 1,1

%A _Clark Kimberling_

%E More terms from _Henry Bottomley_, Nov 13 2000

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 April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)