This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A124670 #4 Oct 01 2013 21:35:19
%S A124670 11,47,73,107,587,673,3467,3673,4783,7499,10799,17327,29983,33073,
%T A124670 62207,71147,72073,137387,225227,243673,252283,355007,442367,504299,
%U A124670 554699,567673,735073,874799,924073,961067,1062073,1175627,1326673,1486847
%N A124670 (Product of successive primes minus 2) divided by 3 is prime.
%H A124670 Harvey P. Dale, <a href="/A124670/b124670.txt">Table of n, a(n) for n = 1..1000</a>
%e A124670 11*13 = 143, 143-2 = 141, 141/3 = 47 is the second entry.
%t A124670 Select[(Times@@@Partition[Prime[Range[500]],2,1]-2)/3,PrimeQ] (* _Harvey P. Dale_, Oct 02 2012 *)
%o A124670 (PARI) g(n) = { for(x=1,n, y=prime(x)*prime(x+1)-2; if(y%3==0,if(isprime(y/3), print1(y/3",")))) }
%Y A124670 Cf. A123921.
%K A124670 easy,nonn
%O A124670 1,1
%A A124670 _Cino Hilliard_, Dec 27 2006