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 A072673 #5 Jul 14 2014 15:22:07
%S A072673 11,31,83,359,1487,4283,4751,5471,7127,12527,41183,66863,71339,85247,
%T A072673 186119,274223,290987,338687,373859,386219,400679,465299,490643,
%U A072673 663407,720791,827147,883739,1096127,1124603
%N A072673 Primes of form prime(n)*prime(2*n)+prime(n)+prime(2*n).
%H A072673 Harvey P. Dale, <a href="/A072673/b072673.txt">Table of n, a(n) for n = 1..1000</a>
%e A072673 A000040(236) = 1487 = 1403+23+61 = 23*61+23+61 = A000040(9)*A000040(18)+A000040(9)+A000040(18), therefore 1487 is a term.
%t A072673 p[n_]:=Module[{p1=Prime[n],p2=Prime[2n]},p1*p2+p1+p2]; Select[ Array[ p,200],PrimeQ] (* _Harvey P. Dale_, Jul 14 2014 *)
%Y A072673 Cf. A072672, A066938.
%K A072673 nonn
%O A072673 1,1
%A A072673 _Reinhard Zumkeller_, Jun 30 2002