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Primes congruent to 47 mod 56.
1

%I #8 Sep 08 2022 08:45:37

%S 47,103,271,383,439,607,719,887,1223,1279,1447,1559,1783,1951,2063,

%T 2287,2399,2791,2903,3407,3463,3631,3911,3967,4079,4583,4639,4751,

%U 4919,5087,5479,5591,5647,5927,6151,6263,6599,6823,6991,7103,7159,7607,8111,8167

%N Primes congruent to 47 mod 56.

%H Vincenzo Librandi, <a href="/A142661/b142661.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[1200]], MemberQ[{47}, Mod[#, 56]] &] (* _Vincenzo Librandi_, Sep 01 2012 *)

%o (Magma) [p: p in PrimesUpTo(9000) | p mod 56 eq 47 ]; // _Vincenzo Librandi_, Sep 01 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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