Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): K3tog, *yo, kfb, k1, kfb, yo, k5tog, repeat from * to last 6 sts, yo, kfb, k1, kfb, yo, sl1-k2tog-psso.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Purl.
• Row 3: K1 tbl, *yo, k2tog, k3, ssk, yo, k1 tbl, repeat from *.
• Row 5: K1 tbl, *yo, ssk, k3, k2tog, yo, k1 tbl, repeat from *.
• Row 7: K1 tbl, *k1 tbl, yo, k5tog, yo, k2 tbl, repeat from * (multiple of 6 sts, plus 1).
• Row 9: K1 tbl, *yo, k1 tbl, yo, sl1-k2tog-psso, yo, k1 tbl, yo, k1 tbl, repeat from * (multiple of 8 sts, plus 1).
• Row 11: K1, *kfb, yo, k5tog, yo, kfb, k1, repeat from *.
• Row 13: K1, *k1, ssk, yo, k1 tbl, yo, k2tog, k2, repeat from *.
• Row 15: K1, *k1, k2tog, yo, k1 tbl, yo, ssk, k2, repeat from *.
• Row 17: K3tog, *yo, k3 tbl, yo, k5tog, repeat from * to last 6 sts, yo, k3 tbl, yo, sl1-k2tog-psso (multiple of 6 sts, plus 7).
• Row 19: K2tog, *[yo, k1 tbl] 3 times, yo, sl1-k2tog-psso, repeat from * to last 5 sts, [yo, k1 tbl] 3 times, yo, ssk (multiple of 8 sts, plus 9).