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!)
A126330 Primes of the form 4p+3 where p is a prime. 1

%I #12 Oct 10 2019 13:53:39

%S 11,23,31,47,71,79,127,151,167,191,239,271,359,431,439,599,607,631,

%T 719,727,911,919,967,1031,1087,1231,1327,1399,1439,1471,1559,1607,

%U 1759,1831,1847,1871,1951,1999,2039,2087,2287,2311,2351,2399,2591,2647,2711,2767

%N Primes of the form 4p+3 where p is a prime.

%H Robert Israel, <a href="/A126330/b126330.txt">Table of n, a(n) for n = 1..10000</a>

%p select(p -> isprime(p) and isprime((p-3)/4), [seq(p,p=7..10000,4)]); # _Robert Israel_, Aug 08 2019

%t Select[3 + 4Prime@Range[130], PrimeQ] (* _Ray Chandler_, Jun 29 2008 *)

%Y For the primes p see A023213.

%Y Cf. A002145, A004767, A080148, A090866, A095278.

%K nonn

%O 1,1

%A _J. M. Bergot_, Mar 09 2007

%E Checked and extended by _N. J. A. Sloane_, Mar 10 2007

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 04:37 EDT 2024. Contains 372703 sequences. (Running on oeis4.)