Generates a random pattern which can be used on a phone or tablet.
Example: 7,5,9,8,6
Patterns are used as an alternative to PINs on touch enabled devices such as phones or tablets. Join particular dots together on a grid, which forms a visual pattern rather than a numeric one.
Key:
| 1 | 2 | 3 |
| 4 | 5 | 6 |
| 7 | 8 | 9 |
| 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 |