Example using this sequence of numbers:
4,6,8,10....
4 is the first “term” or “element” of the sequence.
6 is the second term and so on.
The three dots at the end are indicators that the sequence will continue infinitely.
Using this equation:
an = a(1) • r^n-1
an = the nth term (which every term you are finding)
a(1) = 1st term in sequence
r = common ratio