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 A018427 #16 Jul 08 2025 06:48:22 %S A018427 1,3,9,43,129,387 %N A018427 Divisors of 387. %H A018427 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018427 Divisors[387] (* _Wesley Ivan Hurt_, Sep 04 2022 *) %o A018427 (PARI) divisors(387) \\ _Charles R Greathouse IV_, Jun 21 2017 %K A018427 nonn,fini,full,easy %O A018427 1,2 %A A018427 _N. J. A. Sloane_