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 A018653 #17 Jul 08 2025 07:24:01 %S A018653 1,2,4,5,8,10,16,20,25,32,40,50,80,100,160,200,400,800 %N A018653 Divisors of 800. %H A018653 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018653 Divisors[800] (* _Alonso del Arte_, Oct 08 2017 *) %o A018653 (PARI) divisors(800) \\ _Charles R Greathouse IV_, Jun 21 2017 %K A018653 nonn,fini,full,easy %O A018653 1,2 %A A018653 _N. J. A. Sloane_