Shown with a cast-on count of 67 stitches.  

• Row 1 (RS): K3, k2tog, yo, k1, yo, k3tog, k2, *(k1, yo, k1) in next st, k2, sl1-k2tog-psso, yo, k1, yo, ssk, k5, k2tog, yo, k1, yo, k3tog, k2, repeat from * to last 12 sts, (k1, yo, k1) in next st, k2, sl1-k2tog-psso, yo, k1, yo, ssk, k3.
• Rows 2, 6, 8, 10, 12, 16, 18, and 20: Purl.
• Row 3: K2, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k2, *[k3, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk] twice, k2, repeat from * to last 12 sts, k3, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k2.
• Row 4: P3, k1, p1, p1, k1, p1, p4, *p3, k1, p1, p1, k1, p1, p5, k1, p1, p1, k1, p1, p4, repeat from * to last 11 sts, p3, k1, p1, p1, k1, p1, p3.
• Row 5: K4, k2tog, yo, k1, yo, k2tog, k2, *k3, ssk, yo, k1, yo, ssk, k7, k2tog, yo, k1, yo, k2tog, k2, repeat from * to last 12 sts, k3, ssk, yo, k1, yo, ssk, k4.
• Row 7: K2, yo, k3tog, yo, [k2tog] twice, k2, yo, *(k1, yo, k1) in next st, yo, k2, [ssk] twice, yo, sl1-k2tog-psso, yo, k3, yo, k3tog, yo, [k2tog] twice, k2, yo, repeat from * to last 12 sts, (k1, yo, k1) in next st, yo, k2, [ssk] twice, yo, sl1-k2tog-psso, yo, k2.
• Row 9: K4, yo, k1, k2tog, k4, *k5, ssk, k1, yo, k7, yo, k1, k2tog, k4, repeat from * to last 12 sts, k5, ssk, k1, yo, k4.
• Row 11: Yo, k3, sl1-k2tog-psso, yo, k1, yo, ssk, k2, *k3, k2tog, yo, k1, yo, k3tog, k2, (k1, yo, k1) in next st, k2, sl1-k2tog-psso, yo, k1, yo, ssk, k2, repeat from * to last 12 sts, k3, k2tog, yo, k1, yo, k3tog, k3, yo.
• Row 13: K3, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k1, *k2, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k5, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k1, repeat from * to last 12 sts, k2, k2tog, [yo] twice, sl2-k1-p2sso, [yo] twice, ssk, k3.
• Row 14: P4, k1, p1, p1, k1, p1, p3, *p2, k1, p1, p1, k1, p1, p7, k1, p1, p1, k1, p1, p3, repeat from * to last 11 sts, p2, k1, p1, p1, k1, p1, p4.
• Row 15: K3, ssk, yo, k1, yo, ssk, k3, *k4, k2tog, yo, k1, yo, k2tog, k5, ssk, yo, k1, yo, ssk, k3, repeat from * to last 12 sts, k4, k2tog, yo, k1, yo, k2tog, k3.
• Row 17: Yo, k1, yo, k2, [ssk] twice, yo, sl1-k2tog-psso, yo, k1, *k2, yo, k3tog, yo, [k2tog] twice, k2, yo, (k1, yo, k1) in next st, yo, k2, [ssk] twice, yo, sl1-k2tog-psso, yo, k1, repeat from * to last 12 sts, k2, yo, k3tog, yo, [k2tog] twice, k2, yo, k1, yo.
• Row 19: K5, ssk, k1, yo, k3, *k4, yo, k1, k2tog, k9, ssk, k1, yo, k3, repeat from * to last 12 sts, k4, yo, k1, k2tog, k5.