
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 the function $f(x)=4^{x}$, if $4$, $f(a_{1})$, $f(a_{2})$, $…$, $f(a_{n})$, $2^{n+3}$ ($n∈N^{*}$) constitute a geometric sequence.
(I) Find the general term formula of the sequence $\{a_{n}\}$;
(II) Let $b_{n}= \begin{cases} \overset{\frac {1}{n},n\text{ is even}}{n+2,n\text{ is odd}} \end{cases}$ Find the sum of the first $n$ terms of the sequence $\{\frac {b_{n}}{a_{n}}\}$, denoted as $S_{n}$.

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