What is the next number in the sequence?
10, 5, 9, 7, 6, 5, 7, 5, 8, ?
The numbers do not depend on each other.
The sequence is finite.
Next number is
The $n$th number is the number of letters in the $n$th president's last name. The next president is John Tyler. "Tyler" has five letters.
The sequence depends on US history.
The presidents' names are independent of each other.
There is a finite number of presidents so far.