%I #4 Apr 02 2015 17:07:24
%S 1,1,2,1,4,1,3,1,6,1,5,3,8,5,7,1,7,10,1,9,1,12,1,11,23,14,9,13,5,13,
%T 19,1,18,7,17,11,16,1,15,1,20,1,21,1,22,15,23,1,24,7,25,17,26,1,27,11,
%U 28,19,29,1,30,1,31,21,32,13,33,1,34,67,40,1,39,11
%N Largest proper divisor of A166133(n).
%C a(n) = A032742(A166133(n)).
%H Reinhard Zumkeller, <a href="/A256578/b256578.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o a256578 = a032742 . a166133
%Y Cf. A166133, A032742, A244080.
%K nonn
%O 1,3
%A _Reinhard Zumkeller_, Apr 02 2015