%I #7 Sep 03 2013 13:54:30
%S 0,2,6,9,13,18,22,27,32,37,42,48,53,59,64,70,76,82,88,94,100,107,113,
%T 120,126,133,139,146,152,159,166,173,180,187,194,201,208,215,222,229,
%U 236,243,251,258,265,273,280,288,295,302,310,318,325,333,340,348,356,363,371,379
%N Floor( n*log_2(4*n/3) ).
%D A. Beygelzimer and S. Radziszowski, On halving line arrangements, Discrete Math., 257 (2002), 267-283.
%t Table[Floor[n*Log[2,(4n)/3]],{n,60}] (* _Harvey P. Dale_, Sep 03 2013 *)
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Oct 18 2002
%E Corrected by _Harvey P. Dale_, Sep 03 2013