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%I #6 Mar 30 2012 16:49:53
%S 1,3,17,42,101,158,314,402,685,861,1282,1466,2282,2382,3370,3812,5053,
%T 5222,7307,7242,9786,10164,12634,12722,17290,16433,20674,21300,26218,
%U 25262,33124,30786,38877,38564,45730,44692,57263,52062,63610,63300,76010,70646,89284
%N a(0)=1; a(n) = sigma_1(n) + sigma_2(n) + sigma_3(n).
%Y A000203, A001157, A001158
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Mar 20 2004
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