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A142853 Primes congruent to 55 mod 61. 1

%I #10 Sep 08 2022 08:45:37

%S 421,787,1031,1153,2129,2251,2617,2861,3593,4447,4691,4813,5179,6277,

%T 6521,7253,7741,8839,10181,10303,11279,12011,12377,12743,13109,13597,

%U 13841,13963,14207,14939,15061,15427,15671,17257,17623,17989,18233,19087,19697,19819

%N Primes congruent to 55 mod 61.

%H Vincenzo Librandi, <a href="/A142853/b142853.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[2300]],Mod[#,61]==55&] (* _Harvey P. Dale_, Feb 05 2012 *)

%t Select[Prime[Range[2400]], MemberQ[{55}, Mod[#, 61]] &] (* _Vincenzo Librandi_, Sep 05 2012 *)

%o (Magma) [p: p in PrimesUpTo(20000) | p mod 61 eq 55 ] ; // _Vincenzo Librandi_, Sep 05 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)