Shown with a cast-on count of 27 stitches.  

• Rows 1, 3, 7, and 9 (RS): *P7, k3, repeat from * to last 7 sts, p7.
• Rows 2, 4, 8, and 10: K7, *p3, k7, repeat from *.
• Row 5: *P1, BO 5 sts, k3, repeat from * to last 7 sts, p1, BO 5 sts (multiple of 5 sts, plus 2).
• Row 6: *K1, CO 5 sts, k1, p3, repeat from * to last 2 sts, k1, CO 5 sts, k1 (multiple of 10 sts, plus 7).
• Rows 11, 13, 17, and 19: P2, *k3, p7, repeat from * to last 5 sts, k3, p2.
• Rows 12, 14, 18, and 20: K2, *p3, k7, repeat from * to last 5 sts, p3, k2.
• Row 15: P2, *k3, p1, BO 5 sts, repeat from * to last 5 sts, k3, p2 (multiple of 5 sts, plus 7).
• Row 16: K2, *p3, k1, CO 5 sts, k1, repeat from * to last 5 sts, p3, k2 (multiple of 10 sts, plus 7).
• Repeat rows 1-20.