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A142794 Primes congruent to 41 mod 60. 2

%I #9 Sep 08 2022 08:45:37

%S 41,101,281,401,461,521,641,701,761,821,881,941,1061,1181,1301,1361,

%T 1481,1601,1721,1901,2081,2141,2381,2441,2621,2741,2801,2861,3041,

%U 3221,3461,3581,3701,3761,3821,3881,4001,4241,4421,4481,4721,5021,5081,5261,5381

%N Primes congruent to 41 mod 60.

%H Vincenzo Librandi, <a href="/A142794/b142794.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 16n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Prime[Range[800]], MemberQ[{41}, Mod[#, 60]] &] (* _Vincenzo Librandi_, Sep 04 2012 *)

%o (Magma) [p: p in PrimesUpTo(6000) | p mod 60 eq 41 ]; // _Vincenzo Librandi_, Sep 04 2012

%o (PARI) is(n)=isprime(n) && n%60==41 \\ _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 23 05:37 EDT 2024. Contains 371906 sequences. (Running on oeis4.)