The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A156007 Primes p such that 32*p + 93 is also prime. 5

%I #10 Sep 08 2022 08:45:41

%S 2,7,13,19,23,29,37,47,53,67,79,83,103,107,109,113,127,149,163,167,

%T 179,193,197,223,233,239,257,347,349,389,449,457,499,503,509,523,547,

%U 569,593,613,677,727,733,739,743,757,809,827,859,883,887,919,977,1009,1033

%N Primes p such that 32*p + 93 is also prime.

%H Vincenzo Librandi, <a href="/A156007/b156007.txt">Table of n, a(n) for n = 1..1000</a>

%p a := proc (n) if isprime(32*ithprime(n)+93) = true then ithprime(n) else end if end proc: seq(a(n), n = 1 .. 200); # _Emeric Deutsch_, Mar 01 2009

%t Select[Prime[Range[1100]], PrimeQ[(32*# + 93)]&] (* _Vincenzo Librandi_, Oct 30 2012 *)

%o (Magma) [p: p in PrimesUpTo(1100)| IsPrime(32*p + 93)]; // _Vincenzo Librandi_, Oct 30 2012

%Y Cf. A156004, A156005.

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Feb 01 2009

%E More terms from _Emeric Deutsch_, Mar 01 2009

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.

Last modified August 12 03:53 EDT 2024. Contains 375085 sequences. (Running on oeis4.)