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 A071696 #10 Sep 10 2024 16:36:28 %S A071696 7,19,31,43,103,139,151,199,271,283,463,523,571,619,643,811,823,859, %T A071696 883,1051,1063,1231,1279,1291,1303,1483,1699,1723,1879,1951,1999,2083, %U A071696 2131,2143,2239,2311,2383,2551,2659,2731,2791,2803,2971 %N A071696 Greater members of twin prime pairs of form (4*k+1,4*k+3), k>0. %C A071696 Corresponding lesser members: A071695(n). %C A071696 A010051(a(n)) * A010051(a(n)-2) = 1. - _Reinhard Zumkeller_, Nov 10 2013 %H A071696 Reinhard Zumkeller, <a href="/A071696/b071696.txt">Table of n, a(n) for n = 1..10000</a> %t A071696 Select[Partition[Prime[Range[500]],2,1],#[[2]]-#[[1]]==2&&IntegerQ[ (#[[1]]-1)/4]&][[All,2]] (* _Harvey P. Dale_, Aug 27 2021 *) %t A071696 Select[Table[4k+{1,3},{k,750}],AllTrue[#,PrimeQ]&][[;;,2]] (* _Harvey P. Dale_, Sep 10 2024 *) %o A071696 (Haskell) %o A071696 a071696 n = a071696_list !! (n-1) %o A071696 a071696_list = [p | p <- tail a002145_list, a010051' (p - 2) == 1] %o A071696 -- _Reinhard Zumkeller_, Nov 10 2013 %Y A071696 Cf. A006512, A071699, A071697. %Y A071696 Cf. Subsequence of A002145. %K A071696 nonn %O A071696 1,1 %A A071696 _Reinhard Zumkeller_, Jun 04 2002