Shown with a cast-on count of 3 stitches.  

• Row 1 (RS): K3.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, and 22: Knit.
• Row 3: Kfb, knit (4 sts).
• Row 5: Kfb, knit (5 sts).
• Row 7: Kfb, knit (6 sts).
• Rows 9 and 17: K3, turn (3 sts).
• Rows 11 and 19: K4, turn (4 sts).
• Row 13: Kfb, knit (7 sts).
• Row 15: Kfb, knit (8 sts).
• Row 21: Kfb, knit (9 sts).