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 A345353 #7 Jun 15 2021 21:16:52 %S A345353 5,11,19,569,523,10103,207593,23456789,23581073,6609635987, %T A345353 12445558319,646972529377,19199908193159,9927935178558959, %U A345353 694140212317957,14707209648376466477,17758293160466332549,1450505927977839335179,96209320840499118292907,35191494265562720310441017 %N A345353 Largest prime with strictly ascending digits in base n. %C A345353 The first few terms a(n) written in base n starting with n=3: 12, 23, 34, 2345, 1345, 23567, 345678, 23456789, 1234689a, 13456789ab, 12345678bc, 2345689abcd, 2346789abcde, 23456789abcdef, 1345689bcdefg, 23456789abcdefgh, 1345789abcdefghi, 2456789abcdefghij, 3456789abcdefghijk, 123456789bcdefghijkl, 12456789abcdeghijklm, 23456789abcdefghiklmn, 12345678bcdefghijklmno, 12456789abcdeghijklmnop. %F A345353 a(n) >= A344549(n). %Y A345353 Cf. A344549. %K A345353 nonn,base %O A345353 3,1 %A A345353 _Chai Wah Wu_, Jun 15 2021