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The Collatz series is a mathematical sequence that starts with a positive integer 

(let say n).

Now, the next numbers of the sequence is calculated as:

# If the previous term is even then the next term will be half of the previous term. 

(if the previous term is ‘n’ the next term will be ‘n/2’)

# If the previous term is odd then the next term will be 3 times of the previous term plus 1. 

(if the previous term is ‘n’ the next term will be ‘3n + 1’)

This will be continued till the term becomes 1.

For example, if the starting term be 6 then the sequence will be:

INPUT: Any positive integer ‘n’

OUTPUT: The Collatz Series

PROCESS:

Step 1: [Taking the input]

               Read n [Starting integer]

Step 2: [Finding the Collatz Series]

               While n≠ 1 repeat

                              Print n

                              [If n is odd] 

                              if n mod 2≠0 then

                                             Set n <- 3×n + 1

                              [If ‘n’ is even] 

                              else

                                             Set n <- n/2

                              [End of ‘if-else’]

               [End of ‘while’ loop]

Step 3: Stop.