Shown with a cast-on count of 8 stitches.  

• Rows 1, 3, 5, and 7 (RS): [K2, p2] twice.
• Rows 2, 4, 6, and 8: [K2, p2] twice.
• Row 9: Knit.
• Rows 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, and 38: Knit.
• Row 11: K8, yo (9 sts).
• Row 13: K7, yo, k2tog.
• Row 15: K6, yo, k2tog, k1.
• Row 17: K5, yo, k2tog, k2.
• Row 19: K4, yo, k2tog, k3.
• Row 21: K3, yo, k2tog, k4.
• Row 23: K2, yo, k2tog, k5.
• Row 25: K1, yo, k2tog, k6.
• Row 27: Yo, k2tog, k7.
• Row 29: Ssk, k7 (8 sts).
• Row 31: Ssk, k6 (7 sts).
• Row 33: Ssk, k5 (6 sts).
• Row 35: Ssk, k4 (5 sts).
• Row 37: Ssk, k3 (4 sts).
• Row 39: K2tog, k2 (3 sts).
• Row 40: K2tog, k1 (2 sts).
• Row 41: K2tog (1 st).