Shown with a cast-on count of 16 stitches.  

• Row 1 (RS): K16.
• Row 2: K16.
• Row 3: K1, *sl1 wyif, yo, k1, repeat from * to last st, k1 (23 sts).
• Rows 4, 6, 8, and 10: Sl1 wyif, *sl1 wyif, yo, p2tog, repeat from * to last st, sl1 wyif.
• Rows 5, 7, and 9: K1, *sl1 wyif, yo, k2tog, repeat from * to last st, k1.