Shown with a cast-on count of 60 stitches.  

• Row 1 (RS): P2, [k1, p4] 11 times, k1, p2.
• Row 2: K2, [p1, k4] 11 times, p1, k2.
• Row 3: P2, [yo, k1, yo, p4] 11 times, yo, k1, yo, p2 (84 sts).
• Rows 4 and 16: K2, [p3, k4] 11 times, p3, k2.
• Row 5: P2, [k1, yo, k1, yo, k1, p4] 11 times, k1, yo, k1, yo, k1, p2 (108 sts).
• Rows 6 and 14: K2, [p5, k4] 11 times, p5, k2.
• Row 7: P2, [k2, yo, k1, yo, k2, p4] 11 times, k2, yo, k1, yo, k2, p2 (132 sts).
• Rows 8 and 12: K2, [p7, k4] 11 times, p7, k2.
• Row 9: P2, [k3, yo, k1, yo, k3, p4] 11 times, k3, yo, k1, yo, k3, p2 (156 sts).
• Row 10: K2, [p9, k4] 11 times, p9, k2.
• Row 11: P2, [ssk, k5, k2tog, p4] 11 times, ssk, k5, k2tog, k2 (132 sts).
• Row 13: P2, [ssk, k3, k2tog, p4] 11 times, ssk, k3, k2tog, p2 (108 sts).
• Row 15: P2, [ssk, k1, k2tog, p4] 11 times, ssk, k1, k2tog, p2 (84 sts).
• Row 17: P2, [sl1-k2tog-psso, p1, p2tog, p1] 11 times, sl1-k2tog-psso, p2 (49 sts).
• Rows 18, 20, 22, and 24: Purl.
• Row 19: K2tog, k1, [k2tog, k2] 11 times, k2tog (36 sts).
• Row 21: K1, [yo, k2tog] 17 times, k1.
• Row 23: K1, [k2tog] 17 times, k1 (19 sts).
• Row 25: K1, [[k2tog] twice, k1] 3 times, k2tog, k1 (12 sts).
• Row 26: K1, [k2tog] 5 times, k1 (7 sts).
• Row 27: BO (0 sts).