Shown with a cast-on count of 22 stitches.  

• Row 1 (RS): *K2tog, yo, k1, yo, k6, k2tog, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, and 16: Purl.
• Row 3: *K2tog, k1, yo, k1, yo, k5, k2tog, repeat from *.
• Row 5: *K2tog, k2, yo, k1, yo, k4, k2tog, repeat from *.
• Row 7: *K2tog, k3, yo, k1, yo, k3, k2tog, repeat from *.
• Row 9: *K2tog, k4, yo, k1, yo, k2, k2tog, repeat from *.
• Row 11: *K2tog, k5, yo, k1, yo, k1, k2tog, repeat from *.
• Row 13: *K2tog, k6, yo, k1, yo, k2tog, repeat from *.
• Row 15: *K9, yo, k2tog, repeat from *.
• Row 17: *K1, p1, k1, p1, k1, p1, k1, p1, k1, p1, k1, repeat from *.
• Row 18: *P1, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, repeat from *.
• Row 19: BO (0 sts).