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 A338533 #10 Nov 02 2020 00:53:31 %S A338533 31,1873,6163,4133,8093,18211,10529,18233,12743,14557,15473,16057, %T A338533 16607,37571,28793,22669,92221,58073,65993,34759,37781,32563,36473, %U A338533 106163,70003,48487,64621,75527,87133,117701,89017,171877,61223,61283,62603,96997,75533,103657,116797,81899,82241,108533 %N A338533 Primes in A338529/2. %C A338533 The primes are listed in the order in which they appear in A338529. Some appear more than once, e.g. a(481) = a(669) = 2427137 because 2427137 = A338529(11966)/2 = A338529(16893)/2. %H A338533 Robert Israel, <a href="/A338533/b338533.txt">Table of n, a(n) for n = 1..10000</a> %e A338533 A338529(2)/2 = 31 is prime, so a(1) = 31. %e A338533 A338529(38)/2 = 1873 is prime, so a(2) = 1873. %e A338533 A338529(65)/2 = 6163 is prime, so a(3) = 6163. %p A338533 select(isprime, [seq(ithprime(n+2)*ithprime(n+3)-ithprime(n)*ithprime(n+1), n=2..10000)]/2); %Y A338533 Cf. A338529. %K A338533 nonn %O A338533 1,1 %A A338533 _J. M. Bergot_ and _Robert Israel_, Nov 01 2020