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A162001 Initial members of prime triples (p, p+2, p+6) for which also the sum 3p+8 is prime. 1

%I #13 Jan 04 2021 18:26:24

%S 5,11,17,41,101,311,347,641,857,1301,1427,1481,2237,2687,3461,3527,

%T 4001,4787,8861,10457,11171,11777,13691,14627,19421,19991,21017,21557,

%U 22271,24917,25997,26261,26681,26711,27737,29021,31511,32057,33347,35591

%N Initial members of prime triples (p, p+2, p+6) for which also the sum 3p+8 is prime.

%C A subsequence of A022004 (= initial members of prime triples (p, p+2, p+6)). - _Emeric Deutsch_, Jul 12 2009

%H Robert Israel, <a href="/A162001/b162001.txt">Table of n, a(n) for n = 1..10000</a>

%e (5,7,11) => 23 is prime.

%p a := proc (n) if isprime(n) = true and isprime(n+2) = true and isprime(n+6) = true and isprime(3*n+8) = true then n else end if end proc: seq(a(n), n = 1 .. 50000); # _Emeric Deutsch_, Jul 12 2009

%Y Cf. A022004.

%K nonn

%O 1,1

%A Milton L. Brown (miltbrown(AT)earthlink.net), Jun 24 2009

%E Definition corrected by _Emeric Deutsch_, Jul 12 2009

%E Extended by _Emeric Deutsch_, Jul 12 2009

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Last modified May 13 11:29 EDT 2024. Contains 372504 sequences. (Running on oeis4.)