Shown with a cast-on count of 17 stitches.  

• Row 1 (RS): K2, [yo] twice, k2tog, k4, yo, k3tog, k1, yo, k1, yo, k2tog, yo, k2 (19 sts).
• Rows 2 and 14: Yo, k2tog, purl to last 6 sts, k3, drop st, k2 (18 sts).
• Row 3: K7, yo, k3tog, k1, yo, k3, yo, k2tog, yo, k2 (19 sts).
• Rows 4, 8, 12, and 16: Yo, k2tog, purl to last 5 sts, k5.
• Row 5: K2, [yo] twice, k2tog, k2, yo, k3tog, k1, yo, k5, yo, k2tog, yo, k2 (21 sts).
• Rows 6 and 10: Yo, k2tog, purl to last 6 sts, k3, drop st, k2 (20 sts).
• Row 7: K5, yo, k3tog, k1, yo, k7, yo, k2tog, yo, k2 (21 sts).
• Row 9: K2, [yo] twice, k2tog, k8, yo, k3tog, k1, yo, k2tog, yo, k2tog, k1.
• Row 11: K11, yo, k3tog, k1, yo, k2tog, yo, k2tog, k1 (19 sts).
• Row 13: K2, [yo] twice, k2tog, k6, yo, k3tog, k1, yo, k2tog, yo, k2tog, k1.
• Row 15: K9, yo, k3tog, k1, yo, k2tog, yo, k2tog, k1 (17 sts).