Dyalog APL, 12 10 bytes
-2 thanks to Adám
{⎕←2×⍵}⍣=1
Explanation:
1starting from one,⍣=until the last result and the current one are equal (never, so infinite loop){⎕←2×⍵}double it at each iteration, printing it
Dyalog APL,
RubenVerg
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