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 A379351 #12 Dec 31 2024 16:52:35
%S A379351 2,3,3,11,3,3,19,17,11,83,17,41,73,19,11,227,43,97,163,11,67,443,3,59,
%T A379351 17,19,113,43,131,281,41,107,19,1091,193,409,59,457,241,1523,89,17,
%U A379351 883,617,19,2027,353,67,1153,89,139,137,41,937,1459,1009,523,3251,17,43,1801
%N A379351 a(n) is the greatest prime factor of n^2 + 2.
%H A379351 Harvey P. Dale, <a href="/A379351/b379351.txt">Table of n, a(n) for n = 0..1000</a>
%F A379351 a(n) = A006530(A059100(n)).
%t A379351 FactorInteger[#][[-1,1]]&/@(Range[0,60]^2+2) (* _Harvey P. Dale_, Dec 31 2024 *)
%o A379351 (PARI) a(n) = {vecmax(factor(n^2 + 2)[,1])}
%Y A379351 Cf. A006530, A059100, A379350.
%K A379351 nonn
%O A379351 0,1
%A A379351 _Andrew Howroyd_, Dec 22 2024