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 A018257 #23 Oct 06 2017 04:52:45 %S A018257 1,2,4,5,8,10,20,40 %N A018257 Divisors of 40. %C A018257 There are four ways to partition 40 into its divisors (see A033630): 1 + 2 + 4 + 5 + 8 + 20 = 1 + 4 + 5 + 10 + 20 = 2 + 8 + 10 + 20 = 40. - _Alonso del Arte_, Oct 04 2017 %H A018257 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A018257 Divisors[40] (* _Alonso del Arte_, Oct 04 2017 *) %o A018257 (PARI) divisors(40) \\ _Charles R Greathouse IV_, Jun 22 2017 %Y A018257 Cf. A018433. %Y A018257 This sequence is row n = 40 of the triangle A027750. - _Felix Fröhlich_, Oct 04 2017 %K A018257 nonn,fini,full,easy %O A018257 1,2 %A A018257 _N. J. A. Sloane_