
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Row 1: $2^1+2$  
Row 2: $2^2+2$, $2^2+2^1$  
Row 3: $2^3+2$, $2^3+2^1$, $2^3+2^2$  
Row 4: $2^4+2$, $2^4+2^1$, $2^4+2^2$, $2^4+2^3$  
...  
Based on the above pattern, the sum of all numbers in the $n$-th row is ___.

Present the answer in LaTex format: \boxed{Your answer}
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