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Write a python program for Fibonacci sequence

**1 Answer**

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Write a python program for Fibonacci sequence

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written 2.5 years ago by | • modified 2.5 years ago |

** Fibonacci Sequence is**

0 1 1 2 3 5 8 13 21 34 55 89

**Explanation**

**Iteration 1 :-** a=0 b=1 c=a + b

3rd no(c) = 1st(a) + 2nd(b)

3rd no(c) = 0 +1 = 1

**Iteration 2 :-** a=1 b=1 c=a + b

4th no(c) = 2nd(a) + 3rd(b)

4th no = 1 +1 = 2

Sequence would be 0 1 1 2

**Iteration 3 :-** a=1 b=2 c=a + b

5th no = 3rd + 4th

5th no = 1 +2 = 3

Sequence would be 0 1 1 2 3

**Code**

```
a=0
b=1
n=int(input("Enter the no of elements in the Fibonacci Series:- "))
if n<0:
print("Enter the valid No")
elif n==0:
print(a)
elif n==1:
print(b)
else:
for i in range (n):
c=a+b
print(c,end=' ')
a=b
b=c
```

**Output:-**

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