Question 919992
The sequence of points visited is:


(1,1), (6,7), (2,7), (2,3), (7,9), (3,9), (3,5), (3,1), (8,7), (4,7), (4,3), (9,9), (5,9), (1,9), (1,5), (1,1), ... (repeats indefinitely)


16 points are visited.