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 A360652 #9 Jul 17 2023 10:33:40 %S A360652 433,457,601,1657,1753,1777,1801,2017,2089,2113,2281,2689,2833,2953, %T A360652 3457,3889,4057,4129,4153,4177,4513,4657,4729,5113,5209,5449,5569, %U A360652 5737,5953,6217,6361,6673,6961,7057,7321,7369,7537,7753,7873,8353,8377,8713,8761,8929 %N A360652 Primes of the form x^2 + 432*y^2. %C A360652 Supersequence of A351332. Thus every prime congruent to 1 mod 3 that divides a Fermat number is in this sequence. %C A360652 Every Fermat number that is a semiprime has a prime of this form as a factor. %H A360652 Arkadiusz Wesolowski, <a href="/A360652/b360652.txt">Table of n, a(n) for n = 1..10000</a> %o A360652 (Magma) [p: p in PrimesUpTo(8929) | NormEquation(432, p) eq true]; %o A360652 (PARI) select(p->my(m=Mod(2, p)^(p\12)); p>11 && (m==1||m==p-1), primes(1110)) %Y A360652 Cf. A014752, A023394, A229850, A351332. %K A360652 nonn %O A360652 1,1 %A A360652 _Arkadiusz Wesolowski_, Feb 15 2023