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 A124511 A124508(A124508(n)). 3

%I

%S 1,36,36,72,36,144,36,144,72,144,36,288,36,144,144,288,36,288,36,288,

%T 144,144,36,576,72,144,144,288,36,576,36,576,144,144,144,576,36,144,

%U 144,576,36,576,36,288,288,144,36,1152,72,288,144,288,36,576,144,576,144

%N A124508(A124508(n)).

%C A124512(n) = A124508(a(n));

%C for primes p, q with p<>q: a(p) = 36; a(p*q) = 144; a(p^k) = 9*2^(k+1) = 6*A124508(n), k>0.

%H R. Zumkeller, <a href="/A124511/b124511.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) = A124512(n) / 4 for n > 1.

%Y Cf. A003586.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Nov 04 2006

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