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%I #8 Jul 04 2019 18:58:21
%S 0,0,1,0,2,0,0,0,3,0,1,0,1,0,1,0,4,0,2,0,2,0,0,0,2,0,0,0,2,0,0,0,5,0,
%T 3,0,3,0,1,0,3,0,1,0,1,0,1,0,3,0,1,0,1,0,1,0,3,0,1,0,1,0,1,0,6,0,4,0,
%U 4,0,2,0,4,0,2,0,2,0,0,0,4,0,2,0,2,0,0,0,2,0,0,0,2,0,0,0,4,0,2,0,2,0,0,0,2
%N Let u(1)=1, u(n) = n - abs(u(ceiling(n/2)) - u(floor(n/2))); then a(n) = u(n) - n.
%K nonn
%O 1,5
%A _Benoit Cloitre_, Nov 23 2002
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