\(T_n = 3. 2^{n - 2} \\
T_{1} = 3. 2^{1 - 2} = 3. 2^{-1} \\
T_1 = \frac{3}{2} \)
\(T_2 = 3. 2^{2 - 2} \\
T_2 = 3. 2^0 = 3\)
\(T_3 = 3. 2^{3 - 2} = 3. 2^1 \\
T_3 = 6\)
The first 3 terms of the sequence are \(\frac{3}{2}\), 3 and 6.