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%I #3 Mar 30 2012 16:51:56
%S 5,7,8,14,23,40,71,79,302,460,466,468,469,714,720,722,723,934,1018,
%T 1157,1456,1641,1660,1675,1708,1727,1844,2157,2356,2470,2583,2589,
%U 2591,2592,2744,2829,3116,3381,3388,3390,3391,3568,3623,3655,3696
%N Positions of 2's in A181391.
%H N. J. A. Sloane, <a href="/A171952/b171952.txt">Table of n, a(n) for n = 1..835</a>
%Y Cf. A181391, A171865, A171951-A171956.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Oct 29 2010
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