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 A105763 #8 Feb 16 2025 08:32:57
%S A105763 3,7,191,367,36319,260111,6921503,49570747,12893894812259,
%T A105763 24019714105325502367,172025522413867986317,17007925267174811186047,
%U A105763 3132517481738616046273627839643
%N A105763 Prime Lucas 4-step numbers, A073817.
%H A105763 Tony D. Noe and Jonathan Vos Post, <a href="http://www.cs.uwaterloo.ca/journals/JIS/VOL8/Noe/noe5.html">Primes in Fibonacci n-step and Lucas n-step Sequences,</a> J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4
%H A105763 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Lucasn-StepNumber.html">Lucas n-Step Number</a>
%t A105763 a={-1, -1, -1, 4}; lst={}; Do[s=Plus@@a; a=RotateLeft[a]; a[[ -1]]=s; If[PrimeQ[s], AppendTo[lst, s]], {n, 1000}]; lst
%Y A105763 Cf. A104577 (indices of prime Lucas 4-step numbers).
%K A105763 nonn
%O A105763 1,1
%A A105763 _T. D. Noe_, Apr 22 2005