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A098412 Greatest members p of prime triples (p-6, p-4, p). 10

%I #19 Sep 08 2022 08:45:15

%S 11,17,23,47,107,113,197,233,317,353,467,647,827,863,887,1097,1283,

%T 1307,1433,1487,1493,1613,1877,2003,2087,2243,2273,2663,2693,3257,

%U 3467,3533,3677,3923,4007,4133,4523,4643,4793,4937,4973,5237,5483,5507,5657,6203

%N Greatest members p of prime triples (p-6, p-4, p).

%C Subsequence of A046117; a(n) = A073648(n) + 4 = A022004(n) + 6.

%H Harvey P. Dale, <a href="/A098412/b098412.txt">Table of n, a(n) for n = 1..1000</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PrimeTriplet.html">Prime Triplet</a>

%p K:=10^7: # to get all terms <= K.

%p for n from 1 by 2 to K do; if isprime(n-6) and isprime(n-4) and isprime(n) then print(n) else fi; od; # _Muniru A Asiru_, Aug 06 2017

%t Select[Table[Prime[n], {n, 1000}], PrimeQ[# - 4] && PrimeQ[# - 6] &] (* _Vladimir Joseph Stephan Orlovsky_, Jun 19 2011 *)

%t Select[Partition[Prime[Range[1000]],3,1],Differences[#]=={2,4}&][[All,3]] (* _Harvey P. Dale_, Sep 23 2017 *)

%o (Magma)[p: p in PrimesUpTo(6500)|IsPrime(p) and IsPrime(p-6) and IsPrime(p-4)]; // _Vincenzo Librandi_, Dec 26 2010

%Y Cf. A098413, A098415.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Sep 07 2004

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Last modified May 13 06:21 EDT 2024. Contains 372498 sequences. (Running on oeis4.)