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 A086169 #8 Nov 09 2019 17:42:29
%S A086169 8,20,44,80,140,224,344,488,692,908,1184,1484,1844,2228,2624,3080,
%T A086169 3560,4100,4664,5288,5984,6824,7688,8612,9656,10796,11996,13232,14516,
%U A086169 15836,17456,19100,20756,22472,24236,26276,28340,30440,32564,34748,37052
%N A086169 Sum of the first n twin prime pairs.
%H A086169 Harvey P. Dale, <a href="/A086169/b086169.txt">Table of n, a(n) for n = 1..1000</a>
%e A086169 For n = 4 we have twin prime pairs (3,5) (5,7) (11,13) (17,19) and 3+5+5+7+11+13+17+19 = 80
%t A086169 Accumulate[Total/@Select[Partition[Prime[Range[300]],2,1],#[[2]]-#[[1]] == 2&]] (* _Harvey P. Dale_, Nov 09 2019 *)
%o A086169 (PARI) addnexttwin(n)= { s=0; for(x=1,n, if(prime(x+1)-prime(x)==2,s=s+prime(x+1)+prime(x); print1(s",")) ) }
%K A086169 nonn
%O A086169 1,1
%A A086169 _Cino Hilliard_, Aug 25 2003