Python Program to Test Collatz Conjecture for a Given Number

This is a Python program to test Collatz conjecture for a given number.

The Collatz conjecture is a conjecture that a particular sequence always reaches 1. The sequence is defined as: start with a number n. The next number in the sequence is n/2 if n is even and 3n + 1 if n is odd.

1. Create a function collatz that takes an integer n as argument.
2. Create a loop that runs as long as n is greater than 1.
3. In each iteration of the loop, update the value of n.
4. If n is even, set n to n/2 and if n is odd, set it to 3n + 1.
5. Print the value of n in each iteration.

Here is the source code of a Python program to test Collatz conjecture for a given number. The program output is shown below.

def collatz(n):
    while n > 1:
        print(n, end=' ')
        if (n % 2):
            # n is odd
            n = 3*n + 1
        else:
            # n is even
            n = n//2
    print(1, end='')
 
 
n = int(input('Enter n: '))
print('Sequence: ', end='')
collatz(n)

1. The user is asked to input n.
2. The sequence is printed by calling collatz on n.

Case 1:
Enter n: 11
Sequence: 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1
 
Case 2:
Enter n: 5
Sequence: 5 16 8 4 2 1
 
Case 3:
Enter n: 1
Sequence: 1

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