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 A275879 #19 Jul 22 2022 06:36:05 %S A275879 13,97,193,409,769,2593,4729,6481,12289,15361,55681,331777,417793, %T A275879 737281,786433,2752513,6684673,8650753,36175873,69206017,75079681, %U A275879 155344897,270532609,435486721,824717353,860301577,1380974593,1845657601,3221225473,3255828481,3281584129,8531146753 %N A275879 Nonstandard Jacobi primes. %H A275879 Dana Jacobsen, <a href="/A275879/b275879.txt">Table of n, a(n) for n = 1..45</a>, (from Cosgrave-Dilcher paper) %H A275879 J. B. Cosgrave and K. Dilcher, <a href="https://doi.org/10.1090/mcom/3111">A role for generalized Fermat Numbers</a>, Math. Comp. 86 (2017) <a href="http://johnbcosgrave.com/publications.php"> preprint paper #10</a> See Tables 7.4, 7.5.. %Y A275879 Cf. A275878. %K A275879 nonn %O A275879 1,1 %A A275879 _N. J. A. Sloane_, Aug 17 2016 %E A275879 a(26)-a(32) from _Vincenzo Librandi_, Aug 18 2016