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A142443 Primes congruent to 34 mod 49. 1

%I #15 Feb 29 2024 13:41:10

%S 83,181,769,1063,1259,1553,1847,2141,2239,2729,3023,3121,3709,4003,

%T 4297,4493,4591,4787,5081,5179,5669,6257,6551,7237,7433,7727,8609,

%U 8707,9001,9491,9883,10079,10177,10667,11059,11353,11549,11941,12823,13313,13411

%N Primes congruent to 34 mod 49.

%H Vincenzo Librandi, <a href="/A142443/b142443.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[1600]],Mod[#,49]==34&] (* _Harvey P. Dale_, Oct 28 2011 *)

%t Select[Prime[Range[2500]], MemberQ[{34}, Mod[#, 49]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)

%t Select[Range[34,14000,49],PrimeQ] (* _Harvey P. Dale_, Feb 29 2024 *)

%o (Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 34]; // _Vincenzo Librandi_, Aug 28 2012

%o (PARI) is(n)=isprime(n) && n%49==34 \\ _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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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)