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%I #2 Mar 31 2012 21:08:36
%S 0,1,120,2016,32640,130816,523776,2096128,8386560,134209536,536854528,
%T 2147450880,34359607296,549755289600,2199022206976,8796090925056,
%U 35184367894528,140737479966720,562949936644096,2251799780130816
%N Numbers of the form 2^(n-1)*(2^n - 1) which aren't perfect numbers.
%C A006516 with removed A000396.
%Y A006516, A000396
%K nonn
%O 1,3
%A _Artur Jasinski_, Sep 23 2008
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