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%I #2 Mar 30 2012 18:36:04
%S 2,18,72,450,882,1250,2178,3042,4050,5202,6498,9522,11250,13122,15138,
%T 16200,17298,24642,30258,33282,39762,45000,50562,52488,56448,62658,
%U 64800,66978,71442,80802,90738,95922,101250,112338,124002
%N Even refactorable numbers n such that the number r of odd divisors of n and the number s of even divisors of n are both odd divisors of n.
%C Note that s is necessarily a multiple of r.
%e a(2)=18 since r=3, s=3, t=r+s=6.
%Y Cf. A033950, A049439. A057265.
%K nonn
%O 1,1
%A _Walter Kehowski_, Jun 25 2006
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