Sequence Fidget Spinner

Determine the number of times the spinner rotates 360 degrees during the missing spin among the first fives spins. The New Sequence button will provide a new sequence, and the Spin buttons will reveal the number of times the Spinner rotates 360 degrees during that spin. Use the input bar to determine whether the your missing number is correct.
Things to consider:
1) What is the difference between a spin yielding a positive number and a spin yielding a negative number?
2) Why is this applet titled "Sequence Fidget Spinner" rather than having the distinction between arithmetic or geometric sequences?
3) Is it possible to create a function that models the given sequence of spins for the spinner?