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A140551 Primes p such that neither |p - 30| nor |p + 30| is prime. 0

%I #9 Nov 21 2013 12:49:21

%S 2,3,5,173,191,331,373,421,443,467,499,503,523,619,641,659,701,719,

%T 733,751,761,811,821,863,919,929,1097,1103,1109,1129,1213,1237,1283,

%U 1301,1303,1361,1367,1373,1381,1427,1433,1447,1471,1487,1499,1531,1543

%N Primes p such that neither |p - 30| nor |p + 30| is prime.

%t Select[Prime[Range[500]],!PrimeQ[#-30]&&!PrimeQ[#+30]&] (* _Harvey P. Dale_, Apr 16 2011 *)

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Jun 30 2008

%E Corrected (3, 5, 331 inserted) by _R. J. Mathar_, Apr 25 2010

%E Corrected (19 deleted) by Harvey P. Dale, Apr 16 2011.

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)