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A137978 Primes congruent to {1, 3, 5, 7, 9} modulo 11. 5

%I #17 Sep 08 2022 08:45:33

%S 3,5,7,23,29,31,47,53,67,71,73,89,97,113,137,139,157,163,179,181,199,

%T 223,227,229,251,269,271,293,311,313,317,331,337,353,359,379,383,397,

%U 401,419,421,443,449,463,467,487,491,509,557,577,599,601,617,619,641

%N Primes congruent to {1, 3, 5, 7, 9} modulo 11.

%C A039709(A049084(a(n))) = odd; complement of A137977.

%H R. Zumkeller, <a href="/A137978/b137978.txt">Table of n, a(n) for n = 1..1001</a>

%t Select[Flatten[# + {1, 3, 5, 7, 9}&/@(11Range[0, 80])], PrimeQ] (* _Harvey P. Dale_, Jan 15 2011 *)

%o (Magma) [ p: p in PrimesUpTo(740) | p mod 11 in {1, 3, 5, 7, 9} ] // _Vincenzo Librandi_, Jan 25 2011

%Y Cf. A045415, A045429.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Feb 25 2008

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)