找规律填空:3,5,9,17,( ),( ),129,…

问题描述:

找规律填空:3,5,9,17,( ),( ),129,…

3,5,9,17,( 33),(65 ),129
5-3=2
9-5=2²
17-9=2³
33-17=2^4
65-33=2^5
129-65=2^6