Shown with a cast-on count of 31 stitches.  

• Row 1 (RS): K3, *k2tog, yo, k1, yo, ssk, k5, repeat from * to last 8 sts, k2tog, yo, k1, yo, ssk, k3.
• Rows 2, 4, 6, 8, 10, 12, 14, and 16: Purl.
• Row 3: K2, *k2tog, [k1, yo] twice, k1, ssk, k3, repeat from * to last 9 sts, k2tog, [k1, yo] twice, k1, ssk, k2.
• Row 5: K1, *k2tog, k2, yo, k1, yo, k2, ssk, k1, repeat from *.
• Row 7: K2tog, *k3, yo, k1, yo, k3, sl1-k2tog-psso, repeat from * to last 9 sts, k3, yo, k1, yo, k3, ssk.
• Row 9: K1, *yo, ssk, k5, k2tog, yo, k1, repeat from *.
• Row 11: K1, *yo, k1, ssk, k3, k2tog, k1, yo, k1, repeat from *.
• Row 13: K1, *yo, k2, ssk, k1, k2tog, k2, yo, k1, repeat from *.
• Row 15: K1, *yo, k3, sl1-k2tog-psso, k3, yo, k1, repeat from *.