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 A253640 #13 Jan 05 2020 05:55:13
%S A253640 7,31,1231,4231,366031,819031,1155631,1311031,1575031,3822031,4389031,
%T A253640 4515631,5880631,7102231,9333031,9954031,13213231,13432231,16120231,
%U A253640 19140631,25654231,34987231,37393231,38875231,39375631,41152231,47955631,52345231,53655631,62647231,67486231
%N A253640 Greater of twin primes of the form (k^2 + 4, k^2 + 6).
%H A253640 Amiram Eldar, <a href="/A253640/b253640.txt">Table of n, a(n) for n = 1..10000</a>
%t A253640 Select[Range[8215]^2 + 6, And @@ PrimeQ[# - {0, 2}] &] (* _Amiram Eldar_, Jan 05 2020 *)
%o A253640 (PARI) for(x=1,9999,ispseudoprime(x^2+4)&&ispseudoprime(x^2+6)&&print1(x^2+6","))
%Y A253640 Cf. A001097, A001359, A006512, A085553, A085554, A253639.
%K A253640 nonn
%O A253640 1,1
%A A253640 _M. F. Hasler_, Jan 25 2015