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 A018298 #19 Sep 17 2017 13:36:13 %S A018298 1,3,5,9,15,27,45,135 %N A018298 Divisors of 135. %C A018298 Notice that the base-10 digits of 135 occur as the first three divisors of this number, in order. Hence 135 is in A034838, numbers divisible by each of their digits. - _Alonso del Arte_, Sep 17 2017 %H A018298 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018298 Divisors[135] (* _Alonso del Arte_, Sep 17 2017 *) %o A018298 (PARI) divisors(135) \\ _Charles R Greathouse IV_, Jun 22 2017 %K A018298 nonn,fini,full,easy %O A018298 1,2 %A A018298 _N. J. A. Sloane_