
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
Given a sequence {\( a_n \)} that satisfies: \( a_1 = 1 \), and for any \( m, n \in \mathbb{N}^* \), it holds that \( a_{m+n} = a_m + a_n + mn \), calculate the value of \( \frac{1}{a_1} + \frac{1}{a_2} + \frac{1}{a_3} + \cdots + \frac{1}{a_{2017}} \).

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