A141999 - OEIS

%I #17 Sep 08 2022 08:45:35

%S 23,139,197,313,487,661,719,1009,1531,1879,2053,2111,2459,2633,2749,

%T 3271,3329,3677,3793,3851,3967,4373,4547,4663,4721,5011,5417,5591,

%U 5881,5939,6113,6229,6287,6577,6983,7331,7621,7853,8317,8839,9013,9187,9419,9767

%N Primes congruent to 23 mod 29.

%H Vincenzo Librandi, <a href="/A141999/b141999.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 28n log n. - _Charles R Greathouse IV_, Jul 02 2016

%t Select[Range[23,20000,29],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Apr 07 2011 *)

%o (Magma) [p: p in PrimesUpTo(12000) | p mod 29 eq 23 ]; // _Vincenzo Librandi_, Aug 17 2012

%o (PARI) is(n)=isprime(n) && n%29==23 \\ _Charles R Greathouse IV_, Jul 02 2016

%Y Cf. A000040, A141977, A141978.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008