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A142222 Primes congruent to 25 mod 41. 1

%I #10 Sep 08 2022 08:45:36

%S 107,271,353,599,1009,1091,1583,1747,1993,2239,2731,3469,3797,4289,

%T 5273,5437,5519,5683,6011,6257,6421,7159,7487,8389,8963,9127,9209,

%U 9619,10111,10193,10357,11177,11423,11587,11833,12161,12653,12899,13063,13309,13883

%N Primes congruent to 25 mod 41.

%H Vincenzo Librandi, <a href="/A142222/b142222.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 40n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Prime[Range[5000]],MemberQ[{25},Mod[#,41]]&] (* _Vincenzo Librandi_, Aug 24 2012 *)

%o (Magma) [p: p in PrimesUpTo(17000) | p mod 41 eq 25 ]; // _Vincenzo Librandi_, Aug 24 2012

%o (PARI) is(n)=isprime(n) && n%41==25 \\ _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 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)