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a(n) = a([n/2]) + a([n/3]) + a([n/5]).
7

%I #3 Mar 30 2012 18:51:04

%S 1,3,5,7,9,11,15,15,17,19,23,23,29,29,29,33,35,35,41,41,47,47,47,47,

%T 55,57,57,59,59,59,71,71,73,73,73,73,85,85,85,85,93,93,93,93,93,99,99,

%U 99,109,109,115,115,115,115,123,123,123,123,123,123,147,147,147,147,149

%N a(n) = a([n/2]) + a([n/3]) + a([n/5]).

%C Record values greater than 1 occur at 5-smooth numbers, n>0: A165705(n)=a(A051037(n)) and A165705(m)<a(m) for m < A051037(n).

%H R. Zumkeller, <a href="/A165704/b165704.txt">Table of n, a(n) for n = 0..10000</a>

%Y Cf. A007731, A083662, A088468, A165706.

%K nonn

%O 0,2

%A _Reinhard Zumkeller_, Sep 26 2009