Shown with a cast-on count of 16 stitches.  

• Row 1 (RS): K2, k2, yo, k3, yo, k2, yo, k3, yo, k2, k2 (20 sts).
• Rows 2, 6, 8, 14, and 18: K2, purl to last 2 sts, k2.
• Row 3: K2, k2, k2tog, k1, [yo] twice, k1, ssk, k2tog, k1, [yo] twice, k1, ssk, k2, k2.
• Row 4: K2, p2, p2, k1, p1, p4, k1, p1, p2, p2, k2.
• Row 5: K2, k2, yo, k1, yo, ssk, k2tog, k2, ssk, k2tog, yo, k1, yo, k2, k2.
• Row 7: K2, k4, yo, k8, yo, k4, k2 (22 sts).
• Row 9: K2, k3, k2tog, [yo] twice, k1, k2tog, k2, ssk, k1, [yo] twice, ssk, k3, k2.
• Row 10: K2, p3, p1, k1, p1, p6, k1, p1, p1, p3, k2.
• Row 11: K2, k2, k2tog, yo, k2, k2tog, k1, [yo] twice, k1, ssk, k2, yo, ssk, k2, k2.
• Row 12: K2, p8, k1, p1, p8, k2.
• Row 13: K2, k1, k2tog, k2, yo, k2tog, yo, k4, yo, ssk, yo, k2, ssk, k1, k2.
• Row 15: K2, k3, k1, k2tog, yo, k1, k4tog, k1, yo, ssk, k1, k3, k2 (19 sts).
• Row 16: K2, p7, pfb, p7, k2 (20 sts).
• Row 17: K2, k2, k3tog, k6, sl1-k2tog-psso, k2, k2 (16 sts).