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%I #11 Dec 17 2022 16:18:31
%S 89,383,677,971,1069,1559,1657,1951,2441,2539,2833,3323,3617,3911,
%T 4597,4793,5087,5381,5479,6067,6263,6361,6949,7243,7537,8419,8713,
%U 9007,9203,9497,9791,10477,10771,11261,12143,12241,12437,12829,13417,13613,13711
%N Primes congruent to 40 mod 49.
%H Vincenzo Librandi, <a href="/A142448/b142448.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 42n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Prime[Range[2500]], MemberQ[{40}, Mod[#, 49]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)
%t Select[Range[40,14000,49],PrimeQ] (* _Harvey P. Dale_, Dec 17 2022 *)
%o (Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 40]; // _Vincenzo Librandi_, Aug 28 2012
%o (PARI) is(n)=isprime(n) && n%49==40 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
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