Shown with a cast-on count of 33 stitches.  

• Row 1 (RS): K6, *yo, ssk, k8, repeat from * to last 7 sts, yo, ssk, k5.
• Rows 2, 4, 6, 8, and 10: Purl.
• Row 3: K4, *k2tog, yo, k1, yo, ssk, k5, repeat from * to last 9 sts, k2tog, yo, k1, yo, ssk, k4.
• Row 5: K3, *k2tog, yo, k3, yo, ssk, k3, repeat from *.
• Row 7: K2, *k2tog, yo, k5, yo, ssk, k1, repeat from * to last st, k1.
• Row 9: K1, k2tog, yo, k7, *yo, sl1-k2tog-psso, yo, k7, repeat from * to last 3 sts, yo, ssk, k1.
• Repeat rows 1-10.