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%I #11 Apr 21 2015 13:09:35
%S 1,3,4,6,9,12,15,18,23,27,32
%N The covering numbers rho_3(n).
%H B. Babcock and A. van Tuyl, <a href="http://arxiv.org/abs/1109.5847">Revisiting the spreading and covering numbers</a>, arXiv preprint arXiv:1109.5847, 2011
%Y A row of A202176.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Dec 13 2011
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