Shown with a cast-on count of 13 stitches.  

• Row 1 (RS): Yo, p2tog, yo, p2tog, k1, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (14 sts).
• Rows 2, 4, 6, 8, 10, 12, and 14: Knit to last 4 sts, yo, p2tog, yo, p2tog.
• Row 3: Yo, p2tog, yo, p2tog, k2, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (15 sts).
• Row 5: Yo, p2tog, yo, p2tog, k3, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (16 sts).
• Row 7: Yo, p2tog, yo, p2tog, k4, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (17 sts).
• Row 9: Yo, p2tog, yo, p2tog, k5, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (18 sts).
• Row 11: Yo, p2tog, yo, p2tog, k6, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (19 sts).
• Row 13: Yo, p2tog, yo, p2tog, k7, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2 (20 sts).
• Row 15: Yo, p2tog, yo, p2tog, knit.
• Row 16: BO 7 sts, k8, yo, p2tog, yo, p2tog (13 sts).