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A140563 Primes p such that p + 38 is not a prime. 0

%I #14 Sep 08 2022 08:45:34

%S 2,7,11,13,17,19,31,37,43,47,53,61,67,73,79,83,97,103,107,109,127,131,

%T 137,139,149,151,157,163,167,179,181,193,197,199,211,223,227,229,241,

%U 251,257,263,271,277,281,283,307,313,317,331,337,347,349,353,367,373

%N Primes p such that p + 38 is not a prime.

%t Select[Prime[Range[100]],!PrimeQ[#+38]&] (* _Harvey P. Dale_, Feb 02 2019 *)

%o (Magma) [p: p in PrimesUpTo(1000)|not IsPrime(p+38)] // _Vincenzo Librandi_, Dec 18 2010

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Jul 03 2008

%E Corrected (19, 349 inserted) by _R. J. Mathar_, Apr 25 2010

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)