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 A082698 #28 Feb 02 2023 10:23:49 %S A082698 7,67,1255,8407,67039 %N A082698 Numbers k such that (13*10^(k-1) - 31)/9 is a plateau prime. %C A082698 Prime versus probable prime status and proofs are given in the author's table. %C A082698 a(6) > 2*10^5. - _Tyler Busby_, Feb 02 2023 %D A082698 C. Caldwell and H. Dubner, "Journal of Recreational Mathematics", Volume 28, No. 1, 1996-97, pp. 1-9. %H A082698 Patrick De Geest, <a href="http://www.worldofnumbers.com/deplat.htm#pdp141">PDP Reference Table - 141</a>. %H A082698 Makoto Kamada, <a href="https://stdkmd.net/nrr/1/14441.htm#prime">Prime numbers of the form 144...441</a>. %H A082698 <a href="/index/Pri#Pri_rep">Index entries for primes involving repunits</a>. %F A082698 a(n) = A056245(n+1) + 2. %e A082698 k=7 -> (13*10^(7-1) - 31)/9 = 1444441. %Y A082698 Cf. A056245, A082697-A082720. %K A082698 nonn,base,more %O A082698 1,1 %A A082698 _Patrick De Geest_, Apr 13 2003 %E A082698 A new PRP term from _Serge Batalov_, Nov 02 2008 %E A082698 Edited by _Ray Chandler_, Nov 04 2014