Shown with a cast-on count of 39 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, and 31 (RS): K3, k2tog, k30, kfb, k3.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, and 32: Knit.
• Row 33: K33, w&t (33 sts).
• Row 34: K33.
• Row 35: K30, w&t (30 sts).
• Row 36: K30.
• Row 37: K27, w&t (27 sts).
• Row 38: K27.
• Row 39: K24, w&t (24 sts).
• Row 40: K24.
• Row 41: K21, w&t (21 sts).
• Row 42: K21.
• Row 43: K18, w&t (18 sts).
• Row 44: K18.
• Row 45: K15, w&t (15 sts).
• Row 46: K15.
• Row 47: K12, w&t (12 sts).
• Row 48: K12.
• Row 49: K9, w&t (9 sts).
• Row 50: K9.
• Row 51: K39 (39 sts).
• Rows 52-70 (RS): K39.