Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 0 and 1, the first 12 terms will be:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.
In [5]:
Fib = [0,1]
Fibsum = 0
while Fib[-1] <= 4000000:
Fib.append(Fib[-1]+Fib[-2])
for x in Fib:
if x%2 == 0:
Fibsum += x
print(Fibsum)
In [ ]:
# This cell will be used for grading, leave it at the end of the notebook.