Shown with a cast-on count of 16 stitches.  

• Rows 1 and 17 (RS): K2tog, k5, M1L, k2, M1R, k5, ssk.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Purl.
• Rows 3 and 15: K2tog, k4, M1L, k2, M1R, k6, ssk.
• Rows 5 and 13: K2tog, k3, M1L, k2, M1R, k7, ssk.
• Rows 7 and 11: K2tog, k2, M1L, k2, M1R, k8, ssk.
• Row 9: K2tog, k1, M1L, k2, M1R, k9, ssk.
• Row 19: K2tog, k6, M1L, k2, M1R, k4, ssk.