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 A065924 #9 Feb 19 2024 10:34:13 %S A065924 1,3,10,100,316,1000,3162,10000,100000,1000000,10000000,100000000, %T A065924 316227766,1000000000,3162277660,10000000000,100000000000, %U A065924 1000000000000,3162277660168,10000000000000,100000000000000 %N A065924 Numbers n such that 1/n starts with n, after excluding leading zeros. %C A065924 All the terms are either 10^k or 10^k*sqrt(10) rounded down. %e A065924 316 is present because 1/316 = 0.00316.. %K A065924 base,nonn %O A065924 1,2 %A A065924 Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Nov 28 2001