Shown with a cast-on count of 47 stitches.  

• Rows 1, 3, 11, and 13 (RS): K1, p1, *[k1, p1] 4 times, k9, p1, repeat from * to last 9 sts, [k1, p1] 4 times, k1.
• Rows 2 and 12: K9, *p18, repeat from * to last 2 sts, p1, k1.
• Rows 4 and 10: K9, *p5, k1, p12, repeat from * to last 2 sts, p1, k1.
• Rows 5 and 9: K1, p1, *[k1, p1] 4 times, k3, p1, k1, p1, k3, p1, repeat from * to last 9 sts, [k1, p1] 4 times, k1.
• Rows 6 and 8: K9, *p3, [k1, p1] twice, k1, p10, repeat from * to last 2 sts, p1, k1.
• Row 7: K1, p1, *[k1, p1] 9 times, repeat from * to last 9 sts, [k1, p1] 4 times, k1.
• Rows 14, 16, 24, and 26: K1, p8, *[p1, k1] 5 times, p8, repeat from * to last 2 sts, p1, k1.
• Rows 15 and 25: K2, *k18, repeat from * to last 9 sts, k9.
• Rows 17 and 23: K2, *k3, p1, k14, repeat from * to last 9 sts, k3, p1, k5.
• Rows 18 and 22: K1, p3, k1, p1, k1, p2, *[p1, k1] 5 times, p3, [k1, p1] twice, p1, repeat from * to last 2 sts, p1, k1.
• Rows 19 and 21: K2, *[k1, p1] 3 times, k12, repeat from * to last 9 sts, [k1, p1] 3 times, k3.
• Row 20: K1, [p1, k1] 4 times, *[p1, k1] 9 times, repeat from * to last 2 sts, p1, k1.