Shown with a cast-on count of 12 stitches.  

• Round 1: K2, incL, k1, incL, k6, incR, k1, incR, k2 (16 sts).
• Rounds 2, 4, 6, 8, 10, and 12: Knit.
• Round 3: K2, incL, k1, incL, k10, incR, k1, incR, k2 (20 sts).
• Round 5: K2, incL, k1, incL, k14, incR, k1, incR, k2 (24 sts).
• Round 7: K2, incL, k20, incR, k2 (26 sts).
• Round 9: K2, incL, k22, incR, k2 (28 sts).
• Round 11: K2, incL, k24, incR, k2 (30 sts).
• Round 13: K2, incL, k26, incR, k2 (32 sts).
• Rounds 14, 26, and 30: K2, p1, 2/2 LC, 2/2 RC, p1, 2/2 RC, 2/2 LC, p1, 2/2 LC, 2/2 RC, p1, k2.
• Rounds 15-17: K2, p1, k8, p1, k8, p1, k8, p1, k2.
• Rounds 18 and 22: K2, p1, 2/2 RC, 2/2 LC, p1, 2/2 LC, 2/2 RC, p1, 2/2 RC, 2/2 LC, p1, k2.
• Rounds 19-21, 23-25, and 27-29: K2, p1, [k8, p1] 3 times, k2.