Sequence function error?

Question

I\'m getting an error on line 3 \"TypeError: \'int\' object is not iterable,\" and its been bothering me. Any advice/fixes appreciated.

Example test: collatz_counts(4) →

Answer 1

Use a while loop. Just modify x in place until you get to 1 and keep track of the number of steps each time you run a cycle.

def collatz_counts(x):
    steps = 0
    while x != 1:
        if x % 2:
            x = x * 3 + 1
        else:
            x = x // 2
        steps += 1
    return steps