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 A018391 #18 Jul 08 2025 06:44:45 %S A018391 1,2,4,5,8,10,16,20,32,40,64,80,160,320 %N A018391 Divisors of 320. %H A018391 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018391 Divisors[320] (* _Vladimir Joseph Stephan Orlovsky_, Feb 21 2012 *) %o A018391 (PARI) divisors(320) \\ _Charles R Greathouse IV_, Jun 21 2017 %K A018391 nonn,fini,full,easy %O A018391 1,2 %A A018391 _N. J. A. Sloane_