Question 1025980
<pre>
Start with 2, add 1, multiply by 1, add 2, multiply by 2, etc.

    2
2+1=3
3×1=3
3+2=5
5×2=10
10+3=13
13×3=<font color="red"><b>39</b></font>
<font color="red"><b>39</b></font>+4=43
43×4=172
172+5=177

Edwin</pre>