Fill in the numbers according to the law: 1, 4, 13, 40, how much.
按规律填数：1，4，13，40，多少．
<gadget id="calculator">40 * 3</gadget>
<output>120</output>

<gadget id="calculator">120 + 1</gadget>
<output>121</output>

<result>121</result>