Shown with a cast-on count of 22 stitches.  

• Row 1 (RS): Sl1 wyib, k21.
• Row 2: K22.
• Row 3: Sl1 wyib, k2, [yo, k2tog] 8 times, [yo] twice, k2tog, k1 (23 sts).
• Row 4: K3, p1, k19.
• Row 5: Sl1 wyib, k3, [yo, k2tog] 8 times, [yo] twice, k2tog, k1 (24 sts).
• Row 6: K3, p1, k20.
• Row 7: Sl1 wyib, k4, [yo, k2tog] 8 times, [yo] twice, k2tog, k1 (25 sts).
• Row 8: K3, p1, k21.
• Row 9: Sl1 wyib, k24.
• Row 10: BO 3 sts, k21 (22 sts).