⏎ Return

The Collatz Conjecture

If \(n\) is even, use \(\frac{n}{2}\). Otherwise, use \(3n + 1\).

\[ f(n) = \begin{cases} \frac{n}{2}, & n \text{ is even}, \\ 3n + 1, & n \text{ is odd}. \end{cases} \]

Collatz sequence starting at 19 Numbers appear one at a time, linked by arrows. The current number glows. A text version of the sequence is available below.

Tip: Drag the numbers around! 😁

Following 19.

view sequence