Shown with a cast-on count of 3 stitches.  

• Row 1 (RS): K3.
• Row 2: K1, yo, k1, yo, k1 (5 sts).
• Row 3: K1, M1R, k3, M1L, k1 (7 sts).
• Row 4: K1, yo, k5, yo, k1 (9 sts).
• Row 5: K1, M1R, k1, p5, k1, M1L, k1 (11 sts).
• Row 6: K3, k5, k3.
• Row 7: K1, M1R, k1, p7, k1, M1L, k1 (13 sts).
• Row 8: K3, k7, k3.
• Row 9: K1, M1R, p11, M1L, k1 (15 sts).
• Row 10: K3, k9, k3.
• Row 11: K1, M1R, k1, p11, k1, M1L, k1 (17 sts).
• Row 12: K3, k11, k3.
• Row 13: K1, M1R, k1, p13, k1, M1L, k1 (19 sts).
• Row 14: K3, k13, k3.
• Row 15: K1, M1R, k1, p15, k1, M1L, k1 (21 sts).
• Row 16: K3, k15, k3.
• Row 17: K1, M1R, k1, p17, k1, M1L, k1 (23 sts).
• Row 18: K3, k17, k3.
• Row 19: K1, M1R, k1, p19, k1, M1L, k1 (25 sts).
• Row 20: K3, k19, k3.
• Row 21: K1, M1R, k1, p21, k1, M1L, k1 (27 sts).
• Row 22: K3, k21, k3.