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 A260073 #36 Sep 05 2015 04:44:41
%S A260073 0,0,0,0,0,1,0,0,0,1,0,3,0,1,0,0,0,3,0,3,1,1,0,6,0,1,0,2,0,8,0,0,0,1,
%T A260073 0,9,0,1,1,5,0,9,0,2,0,1,0,10,0,3,0,3,0,6,1,4,1,1,0,23,0,1,2,0,0,7,0,
%U A260073 3,0,6,0,18,0,1
%N A260073 Number of triples {x, y, x mod y} of three distinct divisors of n.
%C A260073 a(n) = 0 if n is a prime power. - _Charles R Greathouse IV_, Aug 20 2015
%H A260073 Charles R Greathouse IV, <a href="/A260073/b260073.txt">Table of n, a(n) for n = 1..10000</a>
%e A260073 a(6) = 1 because x = 3, y = 2, x mod y = 1 and 3, 2, 1 are distinct divisors of 6.
%o A260073 (PARI) a(n)=my(d=divisors(n),x,y,z); sum(i=2,#d-2, y=d[i]; sum(j=i+1,#d-1, x=d[j]; z=x%y; z && n%z==0)) \\ _Charles R Greathouse IV_, Aug 20 2015
%Y A260073 Cf. A027750.
%K A260073 nonn
%O A260073 1,12
%A A260073 _Juri-Stepan Gerasimov_, Aug 19 2015
%E A260073 Corrected and edited by _Charles R Greathouse IV_, Aug 20 2015