%I A063639
%S A063639 7,11,17,19,29,41,43,67,97,101,109,113,137,163,173,181,211,229,241,257,
%T A063639 281,283,317,331,337,353,373,401,409,433,523,547,577,601,617,641,653,
%U A063639 677,691,709,761,787,821,829,853,907,937,941,977,1009,1021,1033,1051
%N A063639 Primes of form p*q*r - 1, where p, q and r are primes.
%H A063639 Harry J. Smith, <a href="b063639.txt">Table of n, a(n) for n=1,...,1000</
               a>
%o A063639 (PARI) { n=0; for (m=1, 10^9, p=prime(m); if (bigomega(p + 1) == 3, write("b063639.txt", 
               n++, " ", p); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Aug 26 2009]
%Y A063639 A014612, A063640.
%Y A063639 Sequence in context: A038880 A019365 A078497 this_sequence A131229 A092737 
               A072669
%Y A063639 Adjacent sequences: A063636 A063637 A063638 this_sequence A063640 A063641 
               A063642
%K A063639 nonn
%O A063639 1,1
%A A063639 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 21 2001