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 A018336 #23 Jul 08 2025 06:39:57 %S A018336 1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210 %N A018336 Divisors of 210. %C A018336 Also numbers that are squarefree and 7-smooth: intersection of A005117 and A002473. - _Reinhard Zumkeller_, Jul 15 2003 %H A018336 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018336 Divisors[210] (* _Vladimir Joseph Stephan Orlovsky_, Feb 19 2012 *) %o A018336 (PARI) divisors(210) \\ _Charles R Greathouse IV_, Jun 21 2017 %K A018336 nonn,fini,full,easy %O A018336 1,2 %A A018336 _N. J. A. Sloane_