Shown with a cast-on count of 13 stitches.  

• Rows 1, 3, and 5 (RS): K13.
• Rows 2, 4, and 6: K10, sl3 wyif.
• Rows 7 and 21: K3, p6, k1, yo, k1, yo, k2 (15 sts).
• Rows 8 and 22: P6, kfb, k5, sl3 wyif (16 sts).
• Rows 9 and 23: K3, p7, k2, yo, k1, yo, k3 (18 sts).
• Rows 10 and 24: P8, kfb, k6, sl3 wyif (19 sts).
• Rows 11 and 25: K3, p8, k3, yo, k1, yo, k4 (21 sts).
• Rows 12 and 26: P10, kfb, k7, sl3 wyif (22 sts).
• Rows 13 and 27: K3, p3, MB, p5, ssk, k5, k2tog, k1 (20 sts).
• Rows 14 and 28: P8, kfb, p1, k3, k1 tbl, k3, sl3 wyif (21 sts).
• Rows 15 and 29: K3, p1, MB, p5, k1, p2, ssk, k3, k2tog, k1 (19 sts).
• Rows 16 and 30: P6, kfb, k1, p1, k5, k1 tbl, k1, sl3 wyif (20 sts).
• Rows 17 and 31: K3, p3, MB, p3, k1, p3, ssk, k1, k2tog, k1 (18 sts).
• Rows 18 and 32: P4, kfb, k2, p1, k3, k1 tbl, k3, sl3 wyif (19 sts).
• Rows 19 and 33: K3, p7, k1, p4, sl1-k2tog-psso, k1 (17 sts).
• Rows 20 and 34: BO 4 sts, k1, p1, k7, sl3 wyif (13 sts).