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 A018303 #16 Jul 08 2025 06:36:59 %S A018303 1,3,7,21,49,147 %N A018303 Divisors of 147. %H A018303 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018303 Divisors[147] (* _Wesley Ivan Hurt_, Mar 20 2022 *) %o A018303 (PARI) divisors(147) \\ _Charles R Greathouse IV_, Jun 22 2017 %K A018303 nonn,fini,full,easy %O A018303 1,2 %A A018303 _N. J. A. Sloane_