Shown with a cast-on count of 31 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, and 21 (WS): Knit.
• Row 2: K8, k2tog, [k8, k2tog] twice, k1 (28 sts).
• Row 4: K2, [k2tog, k7] twice, k2tog, k6 (25 sts).
• Row 6: [K6, k2tog] 3 times, k1 (22 sts).
• Row 8: K2, [k2tog, k5] twice, k2tog, k4 (19 sts).
• Row 10: [K4, k2tog] 3 times, k1 (16 sts).
• Row 12: K2, [k2tog, k3] twice, k2tog, k2 (13 sts).
• Row 14: [K2, k2tog] 3 times, k1 (10 sts).
• Row 16: K1, [k2tog, k1] 3 times (7 sts).
• Row 18: Ssk, [k2tog] twice, k1 (4 sts).
• Row 20: Ssk, k2tog (2 sts).
• Row 22: Ssk (1 st).