
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 that $a\_1=1$, for any $n∈N^{*}$, we have $a\_n > 0$, and $na_{n+1}^{2}-(2n-1)a_{n+1}a_{n}-2a_{n}^{2}=0$. Let $M(x)$ represent the units digit of the integer $x$. Find $M(a_{2017})$.

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