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 A096477 #18 Aug 13 2024 05:31:48
%S A096477 1,2,3,4,6,7,13,14,23,24,29,30,40,59,63,65,71,74,90,103,106,110,112,
%T A096477 117,122,128,132,187,188,193,207,248,257,258,267,271,281,285,292,296,
%U A096477 299,300,303,304,311,317,325,340,343,344,354,356,360,368,382,389,395,402
%N A096477 Subscripts for "secondary twin-primes": numbers k such that prime(prime(k)+1) - prime(prime(k)) = A073124(k) = 2.
%H A096477 Ivan Neretin, <a href="/A096477/b096477.txt">Table of n, a(n) for n = 1..10000</a>
%F A096477 a(n) = primepi(A096478(n)). - _Amiram Eldar_, Aug 13 2024
%e A096477 24 is a term since prime(prime(24)+1) - prime(prime(24)) = prime(89+1) - prime(89) = 463 - 461 = 2.
%t A096477 Flatten[Position[Table[Prime[Prime[n]+1]-Prime[Prime[n]], {n, 1, 1000}], 2]]
%Y A096477 Cf. A006450, A072677, A073124, A096478.
%K A096477 nonn
%O A096477 1,2
%A A096477 _Labos Elemer_, Jun 23 2004