Shown with a cast-on count of 31 stitches.  

• Row 1 (RS): K2tog, *yo, k3, yo, kfb, yo, k3, yo, sl1-k2tog-psso, repeat from * to last 9 sts, yo, k3, yo, kfb, yo, k3, yo, ssk (multiple of 13 sts, plus 14).
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K2tog, *yo, k3tog, yo, k2tog, yo, ssk, yo, sl2-k1-p2sso, yo, sl1-k2tog-psso, repeat from * to last 12 sts, yo, k3tog, yo, k2tog, yo, ssk, yo, sl2-k1-p2sso, yo, ssk (multiple of 10 sts, plus 11).
• Row 5: K3, *k2tog, yo, k1, yo, ssk, k5, repeat from * to last 8 sts, k2tog, yo, k1, yo, ssk, k3.
• Row 7: K2, *k2tog, yo, k3, yo, ssk, k3, repeat from * to last 9 sts, k2tog, yo, k3, yo, ssk, k2.
• Row 9: K3tog, *yo, k1, yo, k3, yo, k1, yo, k5tog, repeat from * to last 8 sts, yo, k1, yo, k3, yo, k1, yo, sl2-k1-p2sso.
• Row 11: K1, *k2tog, yo, k1, yo, sl1-k2tog-psso, yo, k1, yo, ssk, k1, repeat from *.