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 A185166 #19 Aug 30 2019 04:18:39 %S A185166 0,1,2,2,3,2,3,3,3,4,3,4,5,4,5,4,4,6,5,5,6,5,5,6,6,7,5,6,6,5,7,6,6,6, %T A185166 5,7,6,8,7,7,7,6,8,6,7,6,6,8,6,8,7,9,7,8,8,8,7,7,7,9,6,7,8,7,7,7,9,9, %U A185166 8,8,7,9,7,8,8,8,7,9,7,9,8,8,10,8,9,9,9 %N A185166 Number of prime divisors of n (counted with multiplicity) of numbers k such that sum of proper divisors of k exceeds that of all smaller numbers. %H A185166 Amiram Eldar, <a href="/A185166/b185166.txt">Table of n, a(n) for n = 1..1000</a> (calculated from the b-file at A034090) %F A185166 a(n) = A001222(A034090(n)). %e A185166 a(1) = 0 because 1 = A034090(1) has no prime factors. %e A185166 a(2) = 1 because 2 = A034090(2) has one prime factor, itself. %e A185166 a(3) = 2 because 4 = A034090(3) = 2^2 has two prime factors (with multiplicity). %Y A185166 Cf. A001222, A034090, A001065, A034091, A034287, A034288. %K A185166 nonn %O A185166 1,3 %A A185166 _Jonathan Vos Post_, Feb 19 2011 %E A185166 More terms from _Amiram Eldar_, Aug 30 2019