Shown with a cast-on count of 37 stitches.  

• Rows 1, 15, 19, 23, 27, and 31 (WS): Knit.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, and 34: Knit.
• Row 3: K10, k2tog, [k10, k2tog] twice, k1 (34 sts).
• Row 5: K2, [k2tog, k9] twice, k2tog, k8 (31 sts).
• Row 7: K8, k2tog, [k8, k2tog] twice, k1 (28 sts).
• Row 9: K2, [k2tog, k7] twice, k2tog, k6 (25 sts).
• Row 11: [K6, k2tog] 3 times, k1 (22 sts).
• Row 13: K2, [k2tog, k5] twice, k2tog, k4 (19 sts).
• Row 17: [K4, k2tog] 3 times, k1 (16 sts).
• Row 21: K2, [k2tog, k3] twice, k2tog, k2 (13 sts).
• Row 25: [K2, k2tog] 3 times, k1 (10 sts).
• Row 29: K1, [k2tog, k1] 3 times (7 sts).
• Row 33: K1, [k2tog] twice, ssk (4 sts).
• Row 35: K2tog, ssk (2 sts).
• Row 36: Ssk (1 st).