The first five terms of the sequence are -10, -33, -125, -493, -1965
Explanation:
The given expression is 
And
is the first term of the sequence.
We need to determine the first five terms of the sequence.
<u>Second term:</u>
Substituting n = 2 in the expression
, we have,




Thus, the second term is -33
<u>Third term:</u>
Substituting n = 3 in the expression
, we have,



Thus, the third term is -125
<u>Fourth term</u><u>:</u>
Substituting n = 4 in the expression
, we have,



Thus, the fourth term is -493
<u>Fifth term</u>:
Substituting n = 5 in the expression
, we have,



Thus, the fifth term is -1965
Hence, the first five terms of the sequence are -10, -33, -125, -493, -1965