
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 $\{a_n\}$ whose sum of the first $n$ terms is $S_n$, satisfying: $a_1=1$, $S_{n+1}-S_{n}= \frac {3^{n}}{a_{n}}$ $(n \in \mathbb{N}^*)$, find the sum of the first $2017$ terms of the sequence, $S_{2017}$.

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