Shown with a cast-on count of 30 stitches.  

• Row 1 (RS): K21, [[yo] twice, k2tog] 4 times, k1 (34 sts).
• Row 2: Yo, k2tog, k1, p1, [k2, p1] 3 times, k20, turn (33 sts).
• Row 3: K20, [[yo] twice, k2tog] 6 times, k1 (39 sts).
• Row 4: Yo, k2tog, k1, [p1, k2] 5 times, p1, k19, turn (38 sts).
• Row 5: K19, [[yo] twice, k2tog] 9 times, k1 (47 sts).
• Row 6: Yo, k2tog, k1, [p1, k2] 8 times, p1, k18, turn (46 sts).
• Row 7: K46.
• Row 8: Yo, k2tog, k43, turn (45 sts).
• Row 9: K1, [yo, k2tog] 21 times, k2.
• Row 10: Yo, k2tog, k42, turn (44 sts).
• Row 11: K17, k2tog, [k2, k2tog] 6 times, k1 (37 sts).
• Row 12: BO 7 sts, [k2tog, k1] 4 times, k2tog, k14, turn (24 sts).
• Row 13: K15, [[yo] twice, k2tog] 4 times, k1 (28 sts).
• Row 14: Yo, k2tog, k1, p1, [k2, p1] 3 times, k14, turn (27 sts).
• Row 15: K14, [[yo] twice, k2tog] 6 times, k1 (33 sts).
• Row 16: Yo, k2tog, k1, [p1, k2] 5 times, p1, k13, turn (32 sts).
• Row 17: K13, [[yo] twice, k2tog] 9 times, k1 (41 sts).
• Row 18: Yo, k2tog, k1, [p1, k2] 8 times, p1, k12, turn (40 sts).
• Row 19: K40.
• Row 20: Yo, k2tog, k37, turn (39 sts).
• Row 21: K1, [yo, k2tog] 18 times, k2.
• Row 22: Yo, k2tog, k36, turn (38 sts).
• Row 23: K11, k2tog, [k2, k2tog] 6 times, k1 (31 sts).
• Row 24: BO 7 sts, [k2tog, k1] 4 times, k2tog, k20 (30 sts).