Shown with a cast-on count of 32 stitches.  

• Row 1 (RS): K10, k2tog, yo, k2tog, yo, k3, yo, k2tog, yo, k2tog, k6, yo, k2tog, yo, k2tog, k1.
• Row 2: Yo, k32 (33 sts).
• Row 3: K1, k2tog, [yo] twice, k2tog, k4, k2tog, yo, k2tog, yo, k5, yo, k2tog, yo, k2tog, k6, yo, k2tog, yo, k2tog, k1.
• Row 4: Yo, k30, p1, k2 (34 sts).
• Row 5: K8, k2tog, yo, k2tog, yo, k7, yo, k2tog, yo, k2tog, k6, yo, k2tog, yo, k2tog, k1.
• Row 6: Yo, k34 (35 sts).
• Row 7: K1, k2tog, [yo] twice, k2tog, k2, k2tog, yo, k2tog, yo, k9, yo, k2tog, yo, k2tog, k6, yo, k2tog, yo, k2tog, k1.
• Row 8: Yo, k32, p1, k2 (36 sts).
• Row 9: K6, k2tog, yo, k2tog, yo, k4, k2tog, [yo] twice, k2tog, k3, yo, k2tog, yo, k2tog, k6, yo, k2tog, yo, k2tog, k1.
• Row 10: Yo, k20, p1, k15 (37 sts).
• Row 11: K1, k2tog, [yo] twice, k2tog, k2tog, yo, k2tog, yo, k3, k2tog, [yo] twice, k2tog, k2tog, [yo] twice, k2tog, k2, yo, k2tog, yo, k2tog, k2tog, [yo] twice, k2tog, k2, yo, k2tog, yo, k2tog, k1.
• Row 12: Yo, k9, p1, k9, p1, k3, p1, k10, p1, k2 (38 sts).
• Row 13: K7, yo, k2tog, yo, k2tog, k3, k2tog, [yo] twice, k2tog, k2, k2tog, yo, k2tog, yo, k6, k2tog, yo, k2tog, yo, k2tog, k2tog (36 sts).
• Row 14: Yo, k2tog, k18, p1, k15.
• Row 15: K1, k2tog, [yo] twice, k2tog, k3, yo, k2tog, yo, k2tog, k7, k2tog, yo, k2tog, yo, k6, k2tog, yo, k2tog, yo, k2tog, k1 (35 sts).
• Row 16: Yo, k2tog, k30, p1, k2.
• Row 17: K9, yo, k2tog, yo, k2tog, k5, k2tog, yo, k2tog, yo, k6, k2tog, yo, k2tog, yo, k2tog, k1 (34 sts).
• Row 18: Yo, k2tog, k32.
• Row 19: K1, k2tog, [yo] twice, k2tog, k5, yo, k2tog, yo, k2tog, k3, k2tog, yo, k2tog, yo, k6, k2tog, yo, k2tog, yo, k2tog, k1 (33 sts).
• Row 20: Yo, k2tog, k28, p1, k2.
• Row 21: K11, yo, k2tog, yo, k2tog, k1, k2tog, yo, k2tog, yo, k6, k2tog, yo, k2tog, yo, k2tog, k1 (32 sts).
• Row 22: Yo, k2tog, k30.
• Row 23: K1, k2tog, [yo] twice, k2tog, k2tog, [yo] twice, k2tog, k3, yo, k2tog, yo, k3tog, yo, k2tog, yo, k2, k2tog, [yo] twice, k2tog, k2tog, yo, k2tog, yo, k3.
• Row 24: Yo, k2tog, k7, p1, k15, p1, k3, p1, k2.