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 A299107 #30 Jun 28 2024 21:11:08
%S A299107 5,19,71,3691,191861,138907099,26947261171,
%T A299107 436315574686414344004975231616076636245689199862837798457639364993981991744926792179
%N A299107 Probable primes in sequence {s_k(4)}, where s_k(4) = 4*s_{k-1}(4) - s_{k-2}(4), k >= 2, s_0(4) = 1, s_1(4) = 5.
%C A299107 From a problem in A269254. For detailed theory, see [Hone].
%C A299107 Subsequent terms have too many digits to display.
%H A299107 Hugo Pfoertner, <a href="/A299107/b299107.txt">Table of n, a(n) for n = 1..14</a>
%H A299107 Gary Greaves and Jose Yip, <a href="https://arxiv.org/abs/2406.17395">The coherent rank of a graph with three eigenvalues</a>, arXiv:2406.17395 [math.CO], 2024. See p. 31.
%H A299107 Andrew N. W. Hone, et al., <a href="https://arxiv.org/abs/1802.01793">On a family of sequences related to Chebyshev polynomials</a>, arXiv:1802.01793 [math.NT], 2018.
%F A299107 a(n) = s_{A299100(n)}(4) = A001834(A299100(n)).
%Y A299107 A269254, A001834, A294099 (row 4),
%Y A299107 Cf. A285992, A299107, A299109, A088165, A117522, A299100, A299101, A113501, A269253, A298675, A298677, A298878, A299045, A299071, A086386.
%K A299107 nonn,hard
%O A299107 1,1
%A A299107 _L. Edson Jeffery_, _Bob Selcoe_ and _Andrew Hone_, Feb 02 2018