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 A103565 #19 Aug 29 2025 06:54:48 %S A103565 29,149,509,8429,13469,28229,154589,207509,230189,340709,711509, %T A103565 759029,897629,930749,1127309,1142069,1255829,1399469,1585589,2633909, %U A103565 2724629,2863589,3583949,4892189,5282789,6108989,7517669,8039309,8296709,8906189,10524389 %N A103565 Primes of the form 3*p^2+2, where p is prime. %H A103565 Vincenzo Librandi, <a href="/A103565/b103565.txt">Table of n, a(n) for n = 1..1000</a> %F A103565 a(n) = 2+3*(A103564(n))^2. %t A103565 Select[(3#^2+2)&/@Prime[Range[500]],PrimeQ] (* _Harvey P. Dale_, Nov 04 2011 *) %o A103565 (Magma) [a: p in PrimesUpTo(2000)|IsPrime(a) where a is 3*p^2 + 2]; // _Vincenzo Librandi_, Mar 21 2013 %K A103565 nonn,easy,changed %O A103565 1,1 %A A103565 _Zak Seidov_, Mar 23 2005 %E A103565 Corrected by _Harvey P. Dale_, Nov 04 2011