Shown with a cast-on count of 36 stitches.  

• Row 1 (RS): *K8, yo, k1, yo, k9, repeat from * (multiple of 20 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, and 36: Purl.
• Row 3: *K8, yo, sl2-k1-p2sso, yo, k9, repeat from *.
• Row 5: *K7, yo, k2tog, PBk, ssk, yo, k8, repeat from *.
• Row 7: *K6, yo, k2tog, yo, sl2-k1-p2sso, yo, ssk, yo, k7, repeat from *.
• Row 9: *K5, yo, k2tog, yo, k2tog, k1, ssk, yo, ssk, yo, k6, repeat from *.
• Row 11: *K4, yo, k2tog, yo, PBk, k2tog, k1, ssk, PBk, yo, ssk, yo, k5, repeat from *.
• Row 13: *K3, yo, k2tog, yo, k2, k2tog, k1, ssk, k2, yo, ssk, yo, k4, repeat from *.
• Row 15: *K2, yo, k2tog, yo, k3, k2tog, k1, ssk, k3, yo, ssk, yo, k3, repeat from *.
• Row 17: *K1, yo, k2tog, yo, k1, PBk, k2, k2tog, k1, ssk, k2, PBk, k1, yo, ssk, yo, k2, repeat from *.
• Row 19: *Yo, k2tog, yo, k5, k2tog, k1, ssk, k5, yo, ssk, yo, k1, repeat from *.
• Row 21: *K2tog, yo, k15, yo, ssk, k1, repeat from *.
• Row 23: *Yo, k7, yo, sl2-k1-p2sso, yo, k7, yo, sl2-k1-p2sso, repeat from *.
• Row 25: *Ssk, yo, k5, yo, k2tog, k1, ssk, yo, k5, yo, k2tog, k1, repeat from *.
• Row 27: *Yo, ssk, yo, k3, yo, k2tog, yo, sl2-k1-p2sso, yo, ssk, yo, k3, yo, k2tog, yo, sl2-k1-p2sso, repeat from *.
• Row 29: *Ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, PBk, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, PBk, repeat from *.
• Row 31: *PBk, k1, yo, ssk, k1, k2tog, yo, k1, PBk, k1, PBk, k1, yo, ssk, k1, k2tog, yo, k1, PBk, k1, repeat from *.
• Row 33: *K1, PBk, k1, yo, sl2-k1-p2sso, yo, k1, PBk, k3, PBk, k1, yo, sl2-k1-p2sso, yo, k1, PBk, k2, repeat from *.
• Row 35: *Yo, PBk, k2, sl2-k1-p2sso, k2, PBk, yo, k1, yo, PBk, k2, sl2-k1-p2sso, k2, PBk, yo, k1, repeat from *.
• Row 37: *Yo, k9, yo, k1, yo, k9, yo, k1, repeat from * (multiple of 24 sts).
• Row 38: BO (0 sts).