Shown with a cast-on count of 39 stitches.  

• Row 1 (RS): K1, *[yo, ssk] 6 times, repeat from * to last 2 sts, k2.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, and 22: Purl.
• Row 3: K2, *[yo, ssk] 5 times, k2, repeat from * to last 13 sts, [yo, ssk] 5 times, k3.
• Row 5: K3, *[yo, ssk] 4 times, k4, repeat from * to last 12 sts, [yo, ssk] 4 times, k4.
• Row 7: K4, *[yo, ssk] 3 times, k2, yo, ssk, k2, repeat from * to last 11 sts, [yo, ssk] 3 times, k2, yo, ssk, k1.
• Row 9: K1, *yo, ssk, k2, [yo, ssk] twice, k1, k2tog, yo, k1, repeat from * to last 14 sts, yo, ssk, k2, [yo, ssk] twice, k1, k2tog, yo, k3.
• Row 11: K2, *yo, ssk, k2, yo, ssk, k1, k2tog, yo, k3, repeat from * to last 13 sts, yo, ssk, k2, yo, ssk, k1, k2tog, yo, k4.
• Row 13: K3, *yo, ssk, k3, k2tog, yo, k2, yo, ssk, k1, repeat from *.
• Row 15: K1, yo, ssk, k1, *yo, ssk, k1, k2tog, yo, k2, [yo, ssk] twice, k1, repeat from * to last 11 sts, yo, ssk, k1, k2tog, yo, k2, yo, ssk, k2.
• Row 17: K2, yo, ssk, k1, *yo, sl2-k1-p2sso, yo, k2, [yo, ssk] 3 times, k1, repeat from * to last 10 sts, yo, sl2-k1-p2sso, yo, k2, [yo, ssk] twice, k1.
• Row 19: K1, [yo, ssk] twice, k1, *yo, ssk, k1, [yo, ssk] 4 times, k1, repeat from * to last 9 sts, yo, ssk, k1, [yo, ssk] twice, k2.
• Row 21: K2, [yo, ssk] twice, k2, *[yo, ssk] 5 times, k2, repeat from * to last 7 sts, [yo, ssk] 3 times, k1.
• Repeat rows 1-22.