Shown with a cast-on count of 15 stitches.  

• Row 1 (RS): Sl1 wyif, k2, yo, ssk, yo, k2tog, yo, k3, yo, ssk, [yo] twice, k3 (18 sts).
• Row 2: Sl1 wyif, k3, p11, yo, p2tog, k1.
• Row 3: Sl1 wyif, k2, yo, ssk, yo, k2tog, yo, k5, yo, ssk, [yo] twice, k2, [yo] 3 times, k2 (24 sts).
• Row 4: Sl1 wyif, k2, p1, k4, p13, yo, p2tog, k1.
• Row 5: Sl1 wyif, k2, yo, ssk, yo, k2tog, yo, k7, yo, ssk, [yo] twice, k8 (27 sts).
• Row 6: BO 6 sts, k2, p15, yo, p2tog, k1 (21 sts).
• Row 7: Sl1 wyif, k2, yo, sl1-k2tog-psso, yo, ssk, yo, k2, sl1-k2tog-psso, k2, yo, sl2-k1-p2sso, [yo] twice, k3 (20 sts).
• Row 8: Sl1 wyif, k3, p13, yo, p2tog, k1.
• Row 9: Sl1 wyif, k2, yo, sl1-k2tog-psso, yo, ssk, yo, k1, sl1-k2tog-psso, k1, yo, sl2-k1-p2sso, [yo] twice, k2, [yo] 3 times, k2 (22 sts).
• Row 10: Sl1 wyif, k2, p1, k4, p11, yo, p2tog, k1.
• Row 11: Sl1 wyif, k2, yo, sl1-k2tog-psso, yo, ssk, yo, sl1-k2tog-psso, yo, sl2-k1-p2sso, [yo] twice, k8 (21 sts).
• Row 12: BO 6 sts, k2, p9, yo, p2tog, k1 (15 sts).