Shown with a cast-on count of 16 stitches.  

• Rows 1, 3, and 5 (RS): K5, k2tog, yo, k9.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, and 18: Purl.
• Row 7: K2, [yo, k2tog] 6 times, k2.
• Row 9: K5, k2tog, yo, k3, k2tog, yo, k4.
• Row 11: K5, k2tog, yo, k2, k2tog, yo, k5.
• Row 13: K5, k2tog, yo, k1, k2tog, yo, k6.
• Row 15: K6, yo, sl1-k2tog-psso, yo, k7.
• Row 17: K6, k2tog, yo, k8.
• Row 19: K5, ssk, yo, k9.