Shown with a cast-on count of 4 stitches.  

• Round 1: K1, pfb, ctr dbl inc, pfb (8 sts).
• Round 2: K1, p1, 1/1 RC, p1, 1/1 LC, p1.
• Round 3: K1, pfb, kfb, kfb, (k1, p1, k1) in next st, kfb, kfb, pfb (16 sts).
• Rounds 4 and 21-23: K1, p1, k1, 2/2 RC, k1, p1, k1, 2/2 LC, k1, p1.
• Round 5: K1, p1, kfb, 2/2 RC, kfb, p1, kfb, 2/2 LC, kfb, p1 (20 sts).
• Rounds 6-7 and 16-19: K1, p1, k2, 2/2 RC, k2, p1, k2, 2/2 LC, k2, p1.
• Round 8: K1, p1, kfb, k1, 2/2 RC, kfb, k1, p1, k1, kfb, 2/2 LC, k1, kfb, p1 (24 sts).
• Rounds 9-14: K1, p1, k3, 2/2 RC, k3, p1, k3, 2/2 LC, k3, p1.
• Round 15: K1, p1, ssk, k1, 2/2 RC, ssk, k1, p1, k1, k2tog, 2/2 LC, k1, k2tog, p1 (20 sts).
• Round 20: K1, p1, ssk, 2/2 RC, ssk, p1, k2tog, 2/2 LC, k2tog, p1 (16 sts).
• Round 24: K1, ssp, 2/2 RC, cddp, 2/2 LC, p2tog (12 sts).
• Round 25: K1, p1, 2/2 RC, p1, 2/2 LC, p1.
• Round 26: Ssk, 1/1 RC, ssp, p2tog, 1/1 LC, p2tog (8 sts).
• Round 27: K1, 1/1 RC, p2, 1/1 LC, p1.