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%I #8 Mar 30 2012 18:51:21
%S 1,2,1,2,2,2,3,3,3,3,5,2,6,4,2,3,4,4,9,3,3,6,11,3,10,7,9,4,14,3,5,4,5,
%T 5,6,4,18,10,6,4,10,4,7,6,6,12,23,3,21,11,4,7,26,10,10,5,9,15,29,3,30,
%U 6,3,4,6,6,33,5,11,7,35,5,9,19,10,10,15,7,39,4,27,11,41,4,4,8,14,7,11
%N Number of powers of 4 modulo n.
%H David W. Wilson, <a href="/A054705/b054705.txt">Table of n, a(n) for n = 1..1000</a>
%K easy,nonn
%O 1,2
%A _Henry Bottomley_, Apr 20 2000
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