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%I #3 Mar 30 2012 16:51:56
%S 3,9,51,97,133,146,160,172,191,206,240,261,273,313,342,362,396,415,
%T 440,470,483,502,516,536,565,593,615,640,660,677,693,724,750,784,796,
%U 807,832,853,902,949,963,985,1009,1038,1052,1073,1095,1113,1177
%N Positions of 1's in A181391.
%H N. J. A. Sloane, <a href="/A171951/b171951.txt">Table of n, a(n) for n = 1..2762</a>
%Y Cf. A181391, A171865, A171951-A171956.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Oct 29 2010
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