Find the pattern: 1, 5, 11, 19, 29, 41... What is the 10th number in this column.
找规律：1、5、11、19、29、41…这列数中第10个数是多少．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">100 + 9</gadget>
<output>109</output>

<result>109</result>