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 A343552 #10 Apr 20 2021 10:34:47 %S A343552 100,105,108,200,300,400,405,500,600,700,800,900,10000,10101,10200, %T A343552 10206,10500,10800,20000,20202,20400,20500,20805,30000,30303,30600, %U A343552 40000,40404,40500,40800,50000,50505,60000,60606,70000,70500,70707,80000,80808,90000 %N A343552 Numbers m such that for some number k dividing n, m is formed by inserting a digit 0 between each pair of digits of k. %C A343552 If m is a term then so is m*10^(2i), i > 0. %C A343552 If m is a term then so is m*i, 2 <= i <= 9 as long as no carry occurs in the multiplication. %e A343552 108 is a term because 108/18=6, and so is 1010805 because 1010805/1185=853. %Y A343552 Cf. A051022, A285176, A343550, A343551. %K A343552 nonn,base %O A343552 1,1 %A A343552 _Lars Blomberg_, Apr 19 2021