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%I #10 Oct 15 2019 12:01:06
%S 2,1,6,3,10,5,14,7,18,9,4,24,12,28,30,15,34,17,8,40,20,44,22,11,50,25,
%T 54,27,13,60,62,31,66,33,16,72,36,76,38,19,82,41,86,43,21,92,46,23,98,
%U 49,102,51,106,53,26,112,56,116,58,29,122,61
%N a(1)=2; a(n) = floor(a(n-1)/2) if this is not among 0,a(1),...,a(n-1); otherwise a(n) = 2*n.
%C Does this sequence contain every positive integer exactly once?
%Y Cf. A050000, A050004, A050128, A050132, A050135, A050136, A050138, A050196.
%K nonn
%O 1,1
%A _Clark Kimberling_
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