(1/4), (1/9), (1/16)..., according to the arrangement, what is the number after (1/16)
(1/4)，(1/9)，(1/16)…，按排列规律，排在(1/16)后面的数是多少
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>