Shown with a cast-on count of 30 stitches.  

• Row 1 (RS): Sl1 wyib, k13, kfb, k15 (31 sts).
• Rows 2, 4, 6, 8, and 10: Sl1 wyif, p14, k1, p15.
• Rows 3, 5, 7, and 9: Sl1 wyib, k14, p1, k15.
• Row 11: K10, yo, k2, k2tog, k1, p1, k1, ssk, k3, turn (21 sts).
• Row 12: Yo, p5, k1, p4, p2tog, turn (12 sts).
• Row 13: Yo, k2, k2tog, k1, p1, k1, ssk, k2, ssk, turn (11 sts).
• Repeat rows 12-13.