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%I #9 Jul 13 2013 12:02:47
%S 4,9,16,25,36,49,64,70,81,100,121,144,169,196,225,256,280,289,324,361,
%T 400,441,484,529,576,625,630,646,676,729,784,841,900,961,1024,1089,
%U 1120,1156,1225,1296,1369,1444,1521,1600,1681,1750,1764,1798,1849,1936
%N Numbers n such that A072594(n) = 0.
%C All squares are terms, but also 70 is a term, see example, A072596.
%H Reinhard Zumkeller, <a href="/A072595/b072595.txt">Table of n, a(n) for n = 1..10000</a>
%e A072594(70) = A072594(2*5*7) = A072594(2) 'xor' A072594(5) 'xor' A072594(7) = '010' xor '101' xor '111' = '000' = 0.
%o (Haskell)
%o a072595 n = a072595_list !! (n-1)
%o a072595_list = filter ((== 0) . a072594) [1..]
%o -- _Reinhard Zumkeller_, Nov 17 2012
%Y Cf. A000290.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Jun 23 2002