Shown with a cast-on count of 9 stitches.  

• Rounds 1-2 and 4: K9.
• Round 3: Ssk, k1, yo, k1, yo, k1, k2tog, k1, k1.
• Round 5: K1, k1, yo, k1, yo, k1, yo, k1, yo, k1, k2tog, k1 (12 sts).
• Round 6: K12.
• Round 7: K1, ssk, k1, yo, k1, yo, k1, yo, k1, yo, k1, k2tog, k1, k1 (14 sts).
• Rounds 8-12: K14.
• Round 13: K1, k1, ssk, k1, yo, k1, yo, k1, yo, k1, yo, k1, k2tog, k1, k1, k1 (16 sts).
• Round 14: K16.
• Round 15: Ssk, ssk, k1, [yo, k1] 6 times, k2tog, k2tog, k1 (18 sts).
• Round 16: K18.
• Round 17: Ssk, k1, ssk, k1, [yo, k1] 6 times, k2tog, k1, k2tog, k1 (20 sts).
• Rounds 18-22: K20.
• Round 23: Ssk, ssk, ssk, [yo, k1] 8 times, k2tog, k2tog, k2tog (22 sts).
• Rounds 24 and 26: K22.
• Round 25: K1, [ssk] 3 times, k1, [yo, k1] 6 times, k2tog, k1, k2tog, k1, k2tog.
• Round 27: [Ssk] 3 times, k1, [yo, k1] 8 times, k2tog, k2tog, k2tog, k1 (24 sts).
• Rounds 28-31 and 33: K24.
• Round 32: [Ssk] 4 times, [yo, k1] 8 times, [k2tog] 4 times.
• Round 34: [Ssk] 3 times, k1, [yo, k1] 10 times, [k2tog] 3 times, k1 (28 sts).
• Rounds 35 and 37: K28.
• Round 36: [Ssk] 4 times, k1, k1, [yo, k1] 8 times, k1, [k2tog] 4 times, k1.