Shown with a cast-on count of 31 stitches.  

• Row 1 (RS): Yo, *k1, ssk, k7, yo, repeat from * to last 11 sts, k1, ssk, k5, k2tog, k1, yo.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Purl.
• Row 3: K1, *yo, k1, ssk, k3, k2tog, k1, yo, k1, repeat from *.
• Row 5: K1, *k1, yo, k1, ssk, k1, k2tog, k1, yo, k2, repeat from *.
• Row 7: K1, *k2, yo, k1, sl2-k1-p2sso, k1, yo, k3, repeat from *.
• Row 9: K1, *k3, yo, sl2-k1-p2sso, yo, k4, repeat from *.
• Row 11: K1, *k4, yo, k1, ssk, k3, repeat from *.
• Row 13: K1, *k1, k2tog, [k1, yo] twice, k1, ssk, k2, repeat from *.
• Row 15: K1, *k2tog, k1, yo, k3, yo, k1, ssk, k1, repeat from *.
• Row 17: Ssk, *k1, yo, k5, yo, k1, sl2-k1-p2sso, repeat from * to last 9 sts, k1, yo, k5, yo, k1, k2tog.
• Row 19: Ssk, *yo, k7, yo, sl2-k1-p2sso, repeat from * to last 9 sts, yo, k7, yo, k2tog.