Shown with a cast-on count of 17 stitches.  

• Rows 1 and 13 (RS): Knit.
• Row 2: Sl1 wyif, k16.
• Row 3: Sl1 wyif, k1, k2tog, yo, k1, [k2tog, yo] 5 times, k2.
• Row 4: Sl1 wyif, k1, k2tog, yo, k9, k2tog, yo, k2.
• Rows 5, 7, and 9: Sl1 wyif, k1, k2tog, yo, k9, k2tog, yo, k2.
• Rows 6 and 8: Sl1 wyif, k1, k2tog, yo, p9, k2tog, yo, k2.
• Row 10: Sl1 wyif, k1, k2tog, yo, k2tog, k7, k2tog, yo, k2 (16 sts).
• Row 11: Sl1 wyif, k1, k2tog, yo, [k2tog, yo] 5 times, k2.
• Row 12: Sl1 wyif, k15.
• Row 14: BO (0 sts).