Shown with a cast-on count of 27 stitches.  

• Row 1 (RS): K1, p3, k5, p1, k7, p1, k5, p3, k1.
• Row 2: P1, k3, p5, k1, p7, k1, p5, k3, p1.
• Row 3: P27.
• Row 4: P27.
• Row 5: K1, p3, M1R, k5, p1, k7, p1, k5, M1L, p3, k1 (29 sts).
• Row 6: P1, k3, p6, k1, p7, k1, p6, k3, p1.
• Row 7: P29.
• Row 8: K1, p3, M1R, k6, p1, k7, p1, k6, M1L, p3, k1 (31 sts).
• Row 9: P1, k3, p7, k1, p7, k1, p7, k3, p1.
• Row 10: P31.