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 A141128 #2 Mar 30 2012 17:35:23
%S A141128 0,1,2,3,4,3,5,6,7,5,8,5,9,6,6,10,11,8,12,7,7,9,13,8,14,10,15,8,16,7,
%T A141128 17,18,10,12,9,10,19,13,11,10,20,8,21,11,11,14,22,12,23,15,13,12,24,
%U A141128 16,12,11,14,17,25,9,26,18,12,27,13,11,28,14,15,10,29,13,30,20,16,15,13,12,31
%N A141128 Sum over unitary prime power divisors p^k of n of A025528(p^k).
%C A141128 Additive with a(p^k) = A025528(p^k).
%F A141128 sum_{p^k|n,not p^{k+1}|n,k>0} A025528(p^k).
%Y A141128 Cf. A056239, A025528.
%K A141128 nonn
%O A141128 1,3
%A A141128 _Franklin T. Adams-Watters_, Jun 05 2008