The Guthrie sequence of a positive number n is defined to be the numbers generated by the above algorithm.

The Guthrie sequence of a positive number n is defined to be the numbers generated by the above algorithm.

Start with a positive number n if n is even then divide by 2
if n is odd then multiply by 3 and add 1 continue this until n becomes 1
The Guthrie sequence of a positive number n is defined to be the numbers generated by the above algorithm.