
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
The numbers \(1, 2, 3, \ldots, N\) are written in such an order that if the number \(i\) is somewhere (not in the first position), then to the left of it, there must be at least one of the numbers \(i+1\) or \(i-1\). In how many ways can this be done?

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