Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_17901155_3 (no_in_series INTEGER, directed_by VARCHAR)
### Question:
what is the series # for the episode directed by Kelly Sandefur?
### Answer:
SELECT MAX(no_in_series) FROM table_17901155_3 WHERE directed_by = "Kelly Sandefur"