Answer
$1,1,2,3,5,8,13,...$ is the Fibonacci sequence.
Work Step by Step
The sums are
$1,$
$1,$
$1+1=2,$
$2+1=3,$
$1+3+1=5$
$3+4+1=8$
$1+5+6+1=13$
...
$1,1,2,3,5,8,13,...$ is the Fibonacci sequence.
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