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A142436 Primes congruent to 26 mod 49. 1

%I #11 Sep 08 2022 08:45:36

%S 173,271,467,761,859,1153,1447,1741,2819,2917,3407,3701,4093,4289,

%T 4583,4877,5171,5563,5857,6053,6151,7229,7523,7621,7817,8111,8209,

%U 8699,9091,9679,9973,10169,10267,10463,11149,11443,11933,12227,12619,13109,13697

%N Primes congruent to 26 mod 49.

%H Vincenzo Librandi, <a href="/A142436/b142436.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[{26}, Mod[#, 49]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)

%o (Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 26]; // _Vincenzo Librandi_, Aug 28 2012

%o (PARI) is(n)=isprime(n) && n%49==26 \\ _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 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)