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!)
A107964 a(n) = A107712(n) - A002110(n). 0

%I #9 Jul 30 2015 23:01:00

%S 0,1,29,971,45979,2798423,247080797,25626335843,3359804735327,

%T 525737696543051,86239141244378363,16043263182247602671,

%U 3203015846871245149541,765364544195714620296857

%N a(n) = A107712(n) - A002110(n).

%C n-th term is coprime to first (2n) primes.

%t f[n_] := Product[Prime[k + n], {k, n}] - Product[Prime[k], {k, n}]; Table[ f[n], {n, 0, 14}] (* _Robert G. Wilson v_, Jun 14 2005 *)

%Y Cf. A107712, A002110.

%K nonn

%O 0,3

%A _Leroy Quet_, Jun 12 2005

%E More terms from _Robert G. Wilson v_, Jun 14 2005

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 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)