|
%I #10 Sep 08 2022 08:45:36
%S 73,179,709,1451,1663,2087,2617,3041,3253,3359,3571,3677,3889,5479,
%T 5903,6221,6857,7069,8447,9613,9719,9931,10037,10567,11839,12157,
%U 12263,12899,13217,14489,15443,15761,15973,16927,17033,17351,17669,17881,17987,18199
%N Primes congruent to 20 mod 53.
%H Vincenzo Librandi, <a href="/A142550/b142550.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 52n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Prime[Range[2600]], MemberQ[{20}, Mod[#, 53]] &] (* _Vincenzo Librandi_, Aug 30 2012
%o (Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 20]; // _Vincenzo Librandi_, Aug 30 2012
%o (PARI) is(n)=isprime(n) && n%53==20 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
|
