Shown with a cast-on count of 28 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19 (WS): Purl.
• Row 2: K2tog, yo, *k1 tbl, yo, sl1-k2tog-psso, [yo, k2tog] 4 times, yo, repeat from * to last 2 sts, k1 tbl, k1.
• Row 4: K1, k1 tbl, *yo, ssk, yo, sl1-k2tog-psso, [yo, k2tog] 3 times, yo, k1 tbl, repeat from * to last 2 sts, yo, ssk.
• Row 6: K1, yo, *[ssk, yo] twice, sl1-k2tog-psso, [yo, k2tog] twice, yo, k1 tbl, yo, repeat from * to last 3 sts, ssk, k1.
• Row 8: K2, *[yo, ssk] twice, yo, sl1-k2tog-psso, yo, k2tog, yo, k1 tbl, yo, ssk, repeat from * to last 2 sts, yo, ssk.
• Row 10: K1, yo, *[ssk, yo] 3 times, sl1-k2tog-psso, yo, k1 tbl, yo, ssk, yo, repeat from * to last 3 sts, ssk, k1.
• Row 12: K2, *[yo, ssk] 3 times, yo, k3tog, yo, k1 tbl, yo, ssk, repeat from * to last 2 sts, yo, ssk.
• Row 14: K1, yo, *[ssk, yo] 3 times, k3tog, yo, k2tog, yo, k1 tbl, yo, repeat from * to last 3 sts, ssk, k1.
• Row 16: K1, k1 tbl, *[yo, ssk] twice, yo, k3tog, [yo, k2tog] twice, yo, k1 tbl, repeat from * to last 2 sts, yo, ssk.
• Row 18: K2tog, yo, *k1 tbl, yo, ssk, yo, k3tog, [yo, k2tog] 3 times, yo, repeat from * to last 2 sts, k1 tbl, k1.
• Row 20: K1, k2tog, *yo, k1 tbl, yo, k3tog, [yo, k2tog] 4 times, repeat from * to last st, yo, k1.