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%I #2 Mar 30 2012 17:24:41
%S 5,7,11,13,11,13,17,19,101,103,107,109,137,139,149,151,179,181,191,
%T 193,191,193,197,199,419,421,431,433,809,811,821,823,821,823,827,829,
%U 1019,1021,1031,1033,1049,1051,1061,1063,1481,1483,1487,1489,1871,1873
%N Four consecutive primes with two sets of twin primes.
%C Some of these are prime quadruples, but some are not. Call them unrestricted prime quadruples.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PrimeQuadruplet.html">Prime Quadruplet</a>
%o (PARI) {forprime(p1=0,3000,p2=p1+2;if(!isprime(p2),next;);forprime(p3=p2+1,6000,p4=p3+2;if(isprime(p4),print1(p1,",",p2,",",p3,",",p4,","));break;))}
%Y Cf. A007530.
%K nonn
%O 1,1
%A _Harry J. Smith_, Dec 16 2007
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