Question 1197256
.


To get another, equally valid solution, I will assume that the sequence is cyclical and repeats itself infinitely many times.


Then the 10-th term is -37.



I specially presented here this example to show you (to convince you) that without having additional info 
about the given sequence, the posed question makes no sense (is non-sensical, in other words).


Do not accept any other answer,  except of mine :   this question  MAKES  no  SENSE.


<H3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DIAGNOSIS :</H3>

    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The posed &nbsp;" problem " &nbsp;is &nbsp;NONSENSE.