Shown with a cast-on count of 11 stitches.  

• Row 15 (RS): K1, yo, k2tog, k1, yo, k2tog, yo, k1, yo, k1, k2tog, yo, k1 (13 sts).
• Rows 17 and 21 (RS): K1, yo, k2tog, k1, yo, k2tog, yo, k3tog, yo, k1, k2tog, yo, k1.
• Rows 19 and 23 (RS): K1, yo, k2tog, k1, yo, sl1-k2tog-psso, yo, ssk, yo, k1, k2tog, yo, k1.