Shown with a cast-on count of 31 stitches.  

• Rows 1, 3, 5, and 7 (WS): Purl.
• Row 2: 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).
• Row 4: Ssk, *yo, sl1-k2tog-psso, yo, k2tog, yo, ssk, [yo, sl2-k1-p2sso] twice, repeat from * to last 12 sts, yo, sl1-k2tog-psso, yo, k2tog, yo, ssk, yo, sl2-k1-p2sso, yo, ssk (multiple of 10 sts, plus 11).
• Row 6: K2, *k2tog, yo, k3, yo, ssk, k3, repeat from * to last 9 sts, k2tog, yo, k3, yo, ssk, k2.
• Row 8: K1, *k2tog, yo, k1 tbl, yo, sl1-k2tog-psso, yo, k1 tbl, yo, ssk, k1, repeat from *.