Shown with a cast-on count of 12 stitches.  

• Round 1: Kfb, k2tog, k9.
• Round 2: Kfb, k1, k2tog, k8.
• Round 3: Kfb, k2, k2tog, k7.
• Round 4: Kfb, k3, k2tog, k6.
• Round 5: Kfb, k4, k2tog, k5.
• Round 6: Kfb, k5, k2tog, k4.
• Round 7: Kfb, k6, k2tog, k3.
• Round 8: Kfb, k7, k2tog, k2.
• Round 9: Kfb, k8, k2tog, k1.
• Round 10: Kfb, k9, k2tog.
• Rounds 11 and 23: K12.
• Round 12: K2tog, k9, kfb.
• Round 14: K2tog, k8, kfb, k1.
• Round 15: K2tog, k7, kfb, k2.
• Round 16: K2tog, k6, kfb, k3.
• Round 17: K2tog, k5, kfb, k4.
• Round 18: K2tog, k4, kfb, k5.
• Round 19: K2tog, k3, kfb, k6.
• Round 20: K2tog, k2, kfb, k7.
• Round 21: K2tog, k1, kfb, k8.
• Round 22: K2tog, kfb, k9.