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 A175718 #9 Dec 19 2022 11:12:05 %S A175718 1,4,12,192,237684487542793012780631851008 %N A175718 Duplicate of A173603. %F A175718 A000005(a(n)) = a(n-1) + 2 for n >= 2. %e A175718 a(4) = 192 = the smallest number with 12 + 2 = 14 divisors. %Y A175718 Cf. A014221, A175719, A175720. %K A175718 dead %O A175718 1,2 %A A175718 _Jaroslav Krizek_, Aug 15 2010