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 A110057 #10 Jul 03 2022 09:06:04 %S A110057 9,1,2,3,7,3,6,4,9,9,18,11,24,17,25,12,45,16,53,22 %N A110057 Number of solutions to x == 0 (mod A007954(x)), x in A002113, 10^(n-1) <= x < 10^n. %H A110057 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_041.htm">Puzzle 41. Palindromic Carnival</a>, The Prime Puzzles and Problems Connection. %Y A110057 Cf. A002113, A007954, A117057. %K A110057 nonn,base,more %O A110057 1,1 %A A110057 Jean-Christophe Colin (colinjeanchristophe(AT)yahoo.fr), Sep 04 2005 %E A110057 Edited by _R. J. Mathar_, Feb 08 2008 %E A110057 Offset changed to 1 and a(1) inserted by _Jinyuan Wang_, Jun 15 2022