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 A032757 #18 Feb 16 2025 08:32:36 %S A032757 351636153,6260330626,9999999999,99999999999,999999999999, %T A032757 9971824281799,9999999999999,59999999999995,89999999999998, %U A032757 99999999999999,499999999999994,596038242830695,599999999999995 %N A032757 Palindromic Super-9 Numbers. %C A032757 The smallest palindromic super-9 prime is 15125111011152151. %D A032757 C. A. Pickover, "Keys to Infinity", New York: Wiley, p. 7, 1995. %H A032757 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Super-dNumber.html">Super-d Number</a>. %Y A032757 Cf. A014569, A032749. %K A032757 nonn,base %O A032757 1,1 %A A032757 _Patrick De Geest_, May 15 1998; extended Feb 22 2004