Shown with a cast-on count of 47 stitches.  

• Rows 1 and 3 (WS): [K2, p2] 11 times, k2, purl.
• Rows 2 and 4: [K2, p2] 11 times, k2, purl.
• Row 5: K2, p2, k2, p2tog, k2, p2, k1, p1, k2, p1, k2tog, k1, p2, k2, p2, k2, p2tog, k2, p2, k2, p1, k1, p1, k2tog, k1, p2, k2, purl (43 sts).
• Row 6: [K2, p2] 10 times, k2, purl.
• Row 7: [K2, p2, k2, p2tog, k1, p1] 4 times, k2, purl (39 sts).
• Row 8: [K2, p2, k3, p2] 4 times, k2, purl.
• Row 9: [K2, p2, k1, k2tog, p2] 4 times, k2, purl (35 sts).
• Row 10: [K2, p2] 8 times, k2, purl.
• Row 11: [K2, p2, k1, p2tog, p1] 4 times, k2, purl (31 sts).
• Row 12: [K2, p2, k1, p2] 4 times, k2, purl.
• Row 13: [K2, p2, k1, p2tog] 4 times, k2, purl (27 sts).
• Row 14: [K2, p1, k1, p2] 4 times, k2, purl.
• Row 15: [K2, p2, k2tog] 4 times, k2, purl (23 sts).
• Row 16: [K2, p3] 4 times, k2, purl.
• Row 17: K2, [p2, k2tog, k1] 4 times, purl (19 sts).
• Row 18: [K2, p2] 4 times, k2, purl.
• Row 19: [K2, p2tog] 4 times, k2, purl (15 sts).
• Row 20: [K2, p1] 5 times.
• Row 21: [K1, p2tog] 5 times (10 sts).
• Row 22: [K1, p1] 5 times.