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%I #1 Sep 29 2006 03:00:00
%S 3,4,7,14,6,34,68,9,145,11,301,13,615,1230,16,2476,18,4970,20,9960,22,
%T 19942,24,39908,26,79842,28,159712,30,319454,32,638940,35,1277915,
%U 2555830,37,5111697,39,10223433,41,20446907,43,40893857,45
%N Sequence S with property (making all terms distinct) that (i) a(1)=3, (ii) for n is S, a(n)=a(1)+a(2)+...+a(n-1), (iii) for n not in S, a(n)=the smallest number different from a(1), ..., a(n-1) not breaking condition (ii).
%Y Cf. A105753, A121053, A121174, A121175.
%K nonn
%O 1,1
%A Max Alekseyev, Aug 15 2006
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