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 A018676 #17 Jul 08 2025 07:26:26 %S A018676 1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105, %T A018676 120,140,168,210,280,420,840 %N A018676 Divisors of 840. %C A018676 840 is a highly composite number: A002182(15)=840. - _Reinhard Zumkeller_, Jun 21 2010 %H A018676 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018676 Divisors[840] (* _Harvey P. Dale_, Nov 06 2021 *) %o A018676 (PARI) divisors(840) \\ _Charles R Greathouse IV_, Jun 21 2017 %Y A018676 Cf. A018253, A018256, A018261, A018266, A018293, A018321, A018350, A018412, A018609, A178877, A178878, A165412, A178858, A178859, A178860, A178861, A178862, A178863, A178864. %K A018676 nonn,fini,full,easy %O A018676 1,2 %A A018676 _N. J. A. Sloane_