The sequence you provided is:

$4, 9, 13, 18$

Identifying the Pattern

1. First Term: 4
2. Second Term: 9 (4 + 5)
3. Third Term: 13 (9 + 4)
4. Fourth Term: 18 (13 + 5)

Pattern Description

The sequence alternates between adding 5 and adding 4:

• First step: Add 5 to 4 to get 9.
• Second step: Add 4 to 9 to get 13.
• Third step: Add 5 to 13 to get 18.

Continuing the Pattern

If you continue this pattern:

• Next Term: $18 + 4 = 22$
• Following Term: $22 + 5 = 27$

Summary

The word pattern can be described as alternating additions of 5 and 4, starting from 4.

Would you like more information or have any questions about this pattern?

Here are some related questions:

1. Can this alternating pattern be extended indefinitely?
2. What would be the 10th term in this sequence?
3. How does this pattern relate to arithmetic sequences?
4. What if the starting number was changed to another value?
5. How can this pattern be represented in a mathematical formula?

Tip: When identifying patterns, consider looking at the differences between terms and any repeating sequences of operations.