Shown with a cast-on count of 33 stitches.  

• Row 1 (RS): K4, p1, *yo, ssk, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 2: K4, *k1, p1, k1, p1, k1, p1, k1, p1, k1, p3, repeat from * to last 5 sts, k5.
• Row 3: K4, p1, *yo, p1, ssk, p1, k1, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Rows 4, 8, 12, 16, 20, 24, 28, 32, 36, and 40: K4, *k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 5 sts, k5.
• Row 5: K4, p1, *yo, k1, p1, ssk, k1, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 6: K4, *k1, p1, k1, p1, k1, p1, k1, p2, k1, p2, repeat from * to last 5 sts, k5.
• Row 7: K4, p1, *yo, p1, k1, p1, ssk, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 9: K4, p1, *yo, k1, p1, k1, p1, ssk, k1, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 10: K4, *k1, p1, k1, p1, k1, p2, k1, p1, k1, p2, repeat from * to last 5 sts, k5.
• Row 11: K4, p1, *yo, p1, k1, p1, k1, p1, ssk, p1, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 13: K4, p1, *yo, k1, p1, k1, p1, k1, p1, ssk, k1, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 14: K4, *k1, p1, k1, p2, k1, p1, k1, p1, k1, p2, repeat from * to last 5 sts, k5.
• Row 15: K4, p1, *yo, p1, k1, p1, k1, p1, k1, p1, ssk, p1, k1, p1, repeat from * to last 4 sts, k4.
• Row 17: K4, p1, *yo, k1, p1, k1, p1, k1, p1, k1, p1, ssk, k1, p1, repeat from * to last 4 sts, k4.
• Rows 18 and 38: K4, *k1, p2, k1, p1, k1, p1, k1, p1, k1, p2, repeat from * to last 5 sts, k5.
• Row 19: K4, p1, *yo, p1, k1, p1, k1, p1, k1, p1, k1, p1, ssk, p1, repeat from * to last 4 sts, k4.
• Row 21: K4, p1, *k1, p1, k1, p1, k1, p1, k1, p1, k1, k2tog, yo, p1, repeat from * to last 4 sts, k4.
• Row 22: K4, *k1, p3, k1, p1, k1, p1, k1, p1, k1, p1, repeat from * to last 5 sts, k5.
• Row 23: K4, p1, *k1, p1, k1, p1, k1, p1, k1, p1, k2tog, p1, yo, p1, repeat from * to last 4 sts, k4.
• Row 25: K4, p1, *k1, p1, k1, p1, k1, p1, k1, k2tog, p1, k1, yo, p1, repeat from * to last 4 sts, k4.
• Row 26: K4, *k1, p2, k1, p2, k1, p1, k1, p1, k1, p1, repeat from * to last 5 sts, k5.
• Row 27: K4, p1, *k1, p1, k1, p1, k1, p1, k2tog, p1, k1, p1, yo, p1, repeat from * to last 4 sts, k4.
• Row 29: K4, p1, *k1, p1, k1, p1, k1, k2tog, p1, k1, p1, k1, yo, p1, repeat from * to last 4 sts, k4.
• Row 30: K4, *k1, p2, k1, p1, k1, p2, k1, p1, k1, p1, repeat from * to last 5 sts, k5.
• Row 31: K4, p1, *k1, p1, k1, p1, k2tog, p1, k1, p1, k1, p1, yo, p1, repeat from * to last 4 sts, k4.
• Row 33: K4, p1, *k1, p1, k1, k2tog, p1, k1, p1, k1, p1, k1, yo, p1, repeat from * to last 4 sts, k4.
• Row 34: K4, *k1, p2, k1, p1, k1, p1, k1, p2, k1, p1, repeat from * to last 5 sts, k5.
• Row 35: K4, p1, *k1, p1, k2tog, p1, k1, p1, k1, p1, k1, p1, yo, p1, repeat from * to last 4 sts, k4.
• Row 37: K4, p1, *k1, k2tog, p1, k1, p1, k1, p1, k1, p1, k1, yo, p1, repeat from * to last 4 sts, k4.
• Row 39: K4, p1, *k2tog, p1, k1, p1, k1, p1, k1, p1, k1, p1, yo, p1, repeat from * to last 4 sts, k4.