Shown with a cast-on count of 29 stitches.  

• Row 1 (RS): K1 PB, yo, [k1, yo] 27 times, k1 PB (57 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, and 22: Purl.
• Row 3: K2, yo, k1, ssk, yo, ssk, yo, k15, k4tog, [yo, k1] 5 times, yo, k4tog, k15, yo, k2tog, yo, k2tog, k1, yo, k2 (59 sts).
• Row 5: K1, yo, k2, yo, ssk, yo, ssk, yo, k4, ssk, yo, k1, yo, k2tog, k13, k1 PB, k13, ssk, yo, k1, yo, k2tog, k4, yo, k2tog, yo, k2tog, yo, k2, yo, k1 (63 sts).
• Row 7: K1 PB, yo, k3, yo, k2tog, ssk, yo, k5, yo, k2tog, k1, ssk, yo, k7, k4tog, [yo, k1] 5 times, yo, k4tog, k7, yo, k2tog, k1, ssk, yo, k5, yo, k2tog, ssk, yo, k3, yo, k1 PB (65 sts).
• Row 9: K2, yo, k4, yo, k2tog, k6, ssk, yo, k1, yo, k2tog, k13, k1 PB, k13, ssk, yo, k1, yo, k2tog, k6, ssk, yo, k4, yo, k2 (67 sts).
• Row 11: K1, yo, k2, yo, k5, yo, k2tog, k5, yo, k2tog, k1, ssk, yo, k7, k4tog, [yo, k1] 5 times, yo, k4tog, k7, yo, k2tog, k1, ssk, yo, k5, ssk, yo, k5, yo, k2, yo, k1 (71 sts).
• Row 13: K1 PB, yo, k4, yo, k2tog, k4, yo, k2tog, k4, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, yo, k2tog, k3, yo, sl1-k2tog-psso PB, yo, k3, ssk, yo, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, k4, ssk, yo, k4, ssk, yo, k4, yo, k1 PB (73 sts).
• Row 15: K2, yo, k5, yo, k2tog, yo, sl1-k2tog-psso PB, yo, k1, yo, k2tog, k3, yo, k2tog, k1, ssk, yo, k2, yo, k2tog, k2, yo, k2tog, yo, k2tog, k7, ssk, yo, ssk, yo, k2, ssk, yo, k2, yo, k2tog, k1, ssk, yo, k3, ssk, yo, k1, yo, sl1-k2tog-psso PB, yo, ssk, yo, k5, yo, k2 (75 sts).
• Row 17: K1, yo, k2, yo, k3, ssk, yo, k1, yo, k2tog, k4, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k1, [yo, k2tog] 3 times, k1, yo, sl1-k2tog-psso PB, yo, k1, [ssk, yo] 3 times, k1, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k4, ssk, yo, k1, yo, k2tog, k3, yo, k2, yo, k1 (79 sts).
• Row 19: K1 PB, yo, k6, ssk, yo, k3, yo, k2tog, k4, yo, k2tog, k1, yo, k2tog, k1, ssk, yo, k2, yo, k2tog, k1, ssk, yo, k1, yo, ssk, yo, ssk, k3, k2tog, yo, k2tog, yo, k1, yo, k2tog, k1, ssk, yo, k2, yo, k2tog, k1, ssk, yo, k1, ssk, yo, k4, ssk, yo, k3, yo, k2tog, k6, yo, k1 PB (81 sts).
• Row 21: K2, yo, k5, ssk, yo, k5, yo, k2tog, yo, sl1-k2tog-psso PB, yo, k1, yo, k2tog, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, k2, yo, k2tog, yo, k2tog, k1, ssk, yo, ssk, yo, k2, ssk, yo, k1, yo, k2tog, k2, ssk, yo, k1, yo, k2tog, ssk, yo, k1, yo, sl1-k2tog-psso PB, yo, ssk, yo, k5, yo, k2tog, k5, yo, k2 (83 sts).