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 A092390 #12 Jan 17 2020 10:36:09
%S A092390 5,10,18,26,40,50,60,72,84,100,110,126,142,150,160,184,198,212,230,
%T A092390 244,254,272,282,312,326,340,354,370,380,394,420,442,454,476,498,510,
%U A092390 530,546,564,582,600,614,634,650,660,678,702,726,748,770,790,808,818,844
%N A092390 a(n) = prime(n) + prime(2n).
%H A092390 Seiichi Manyama, <a href="/A092390/b092390.txt">Table of n, a(n) for n = 1..10000</a>
%e A092390 a(1) = 5 because p(1)= 2 and p(2) = 3.
%e A092390 a(2) = 10 because p(2)= 3 and p(4) = 7.
%e A092390 a(3) = 18 because p(3)= 5 and p(6) = 13.
%t A092390 Table[Prime[n]+Prime[2n],{n,60}] (* _Harvey P. Dale_, Jan 03 2012 *)
%Y A092390 Cf. A000040.
%Y A092390 Equals 2*A087461(n) for n>1.
%K A092390 nonn,easy
%O A092390 1,1
%A A092390 _Giovanni Teofilatto_, Apr 03 2004
%E A092390 More terms from Pab Ter (pabrlos(AT)yahoo.com), May 25 2004
%E A092390 Offset 1 from _Seiichi Manyama_, Jan 17 2020