5, 10, 13, 26, 29, 58, 61, (....)  Answers:
A) 128
B) 64
C) 122
D) 125
E) 130
Numbers are alternatively multiplied by 2 and increased by 3   5 Ã— 2 = 10   10 + 3= 
<gadget id="calculator">10 + 3</gadget>
<output>13</output>
13   13 Ã— 2= 26   26 + 3= 
<gadget id="calculator">26 + 3</gadget>
<output>29</output>
29   29 Ã— 2= 58   58 + 3= 
<gadget id="calculator">58 + 3</gadget>
<output>61</output>
61   61 Ã— 2= 122   ANSWER 122
<result>C</result>
5, 10, 13, 26, 29, 58, 61, (....)