Shown with a cast-on count of 21 stitches.  

• Rows 1, 3, 5, 7, 9, and 11 (RS): K1, k2tog, k7, M1R, sl1 wyib, M1L, k7, k2tog, k1.
• Rows 2, 4, 6, 8, and 10: Sl1 wyif, p19, sl1 wyif.
• Row 12: BO 10 sts, p9, sl1 wyif (11 sts).
• Rows 13, 15, 17, 19, and 21: K1, k2tog, k7, M1R, sl1 wyib.
• Rows 14, 16, 18, 20, and 22: P10, sl1 wyif.