Shown with a cast-on count of 26 stitches.  

• Row 1 (RS): Knit to last 24 sts, k12, yo, k12 (27 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30: Purl.
• Row 3: K2, k10, k2tog, yo, knit to last 12 sts, yo, ssk, k10.
• Row 5: K2, k8, k3tog, (k1, yo, k1) in next st, yo, k1 tbl, yo, (k1, yo, k1) in next st, sl1-k2tog-psso, k8 (29 sts).
• Row 7: K2, k6, k3tog, k1, yo, k1 tbl, yo, k1, yo, sl2-k1-p2sso, yo, k1, yo, k1 tbl, yo, knit to last 9 sts, sl1-k2tog-psso, k6.
• Row 9: K2, k4, k3tog, k2, yo, k1 tbl, yo, k2, yo, sl2-k1-p2sso, yo, k2, yo, k1 tbl, yo, k2, sl1-k2tog-psso, k4.
• Row 11: K2, k2, k3tog, k3, yo, k1 tbl, yo, k3, yo, sl2-k1-p2sso, yo, k3, yo, k1 tbl, yo, k3, sl1-k2tog-psso, k2.
• Row 13: K2, k3tog, yo, k4, yo, k1 tbl, yo, k4, yo, sl2-k1-p2sso, yo, k4, yo, k1 tbl, yo, k4, yo, sl1-k2tog-psso (31 sts).
• Row 15: K2, ssk, yo, k11, yo, k2, BO (19 sts).
• Row 17: K2, ssk, yo, knit to last 4 sts, k2tog, k2 (18 sts).
• Row 19: K2, ssk, yo, knit to last 4 sts, k2tog, k2 (17 sts).
• Row 21: K2, ssk, yo, ssk, knit to last 4 sts, k2tog, k2 (15 sts).
• Row 23: K2, ssk, yo, ssk, knit to last 4 sts, k2tog, k2 (13 sts).
• Row 25: K2, ssk, yo, ssk, knit to last 4 sts, k2tog, k2 (11 sts).
• Row 27: K2, ssk, yo, ssk, knit to last 4 sts, k2tog, k2 (9 sts).
• Row 29: K2, ssk, yo, sl2-k1-p2sso, k2 (7 sts).
• Row 31: K2, ssk, knit (6 sts).