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!)
A152528 a(n) = p(n)*p(n+2) - 3*p(n+1), where p(n) is the n-th prime. 6

%I #6 Jul 28 2015 04:09:15

%S 1,6,34,58,148,196,334,482,626,980,1160,1468,1798,2138,2614,3056,3770,

%T 4130,4678,5390,5822,6782,7784,8698,9688,10498,10906,11764,13504,

%U 14422,17006,17798,19996,20542,22940,24142,25730,27698

%N a(n) = p(n)*p(n+2) - 3*p(n+1), where p(n) is the n-th prime.

%p A152528 := proc(n)

%p ithprime(n)*ithprime(n+2)-3*ithprime(n+1) ;

%p end proc: # _R. J. Mathar_, Jul 28 2015

%t #[[1]]*#[[3]]-3*#[[2]]&/@Partition[Prime[Range[50]],3,1] (* _Harvey P. Dale_, Jul 14 2014 *)

%Y Cf. A000040, A111071, A152527, A152529, A152530, A152531, A152532.

%K easy,nonn

%O 1,2

%A _Omar E. Pol_, Dec 06 2008

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 1 20:04 EDT 2024. Contains 372176 sequences. (Running on oeis4.)