Answer:
The Fibonacci Series is a sequence of numbers produced by adding the last two numbers to get the next. It arbitrarily starts with 0, 1.
The first few terms are:
0, 1, 1, 2, 3, 5, 8, 13 ...
after 0, 1 these are generated by
0+1=1
1+1=2
2+1=3
2+3=5
3+5=8