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a(n+1) = smallest number greater a(n) that ends in binary representation with floor(a(n)/4); a(1)=1.
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%I #7 Mar 30 2012 18:50:47

%S 1,2,4,5,7,9,10,14,15,19,20,21,29,31,39,41,42,58,62,63,79,83,84,85,

%T 117,125,127,159,167,169,170,234,250,254,255,319,335,339,340,341,469,

%U 501,509,511,639,671,679,681,682,938,1002,1018,1022,1023,1279,1343,1359

%N a(n+1) = smallest number greater a(n) that ends in binary representation with floor(a(n)/4); a(1)=1.

%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>

%Y Cf. A007088.

%K nonn,base

%O 1,2

%A _Reinhard Zumkeller_, Oct 31 2004