Shown with a cast-on count of 8 stitches.  

• Row 1 (RS): K3, yo, k1, yo, yo, k1, yo, k3 (12 sts).
• Row 2: K3, p3, k1, p2, k3.
• Row 3: K3, yo, k2, yo, k2, yo, k2, yo, k3 (16 sts).
• Row 4: K3, p10, k3.
• Row 5: K3, yo, k3, yo, k4, yo, k3, yo, k3 (20 sts).
• Row 6: K3, p14, k3.
• Row 7: K3, yo, k4, yo, k6, yo, k4, yo, k3 (24 sts).
• Row 8: K3, p18, k3.
• Row 9: K3, yo, k5, yo, k8, yo, k5, yo, k3 (28 sts).
• Row 10: K3, p22, k3.
• Row 11: K3, yo, k6, yo, k10, yo, k6, yo, k3 (32 sts).
• Row 12: K3, p26, k3.
• Row 13: K3, yo, k7, yo, k12, yo, k7, yo, k3 (36 sts).
• Row 14: K3, p30, k3.
• Row 15: K3, yo, k8, yo, k14, yo, k8, yo, k3 (40 sts).
• Row 16: K3, p34, k3.
• Row 17: K3, yo, k9, yo, k16, yo, k9, yo, k3 (44 sts).
• Row 18: K3, p38, k3.
• Row 19: K3, yo, k10, yo, k18, yo, k10, yo, k3 (48 sts).
• Row 20: K3, p42, k3.
• Row 21: K3, yo, k11, yo, k20, yo, k11, yo, k3 (52 sts).
• Row 22: K3, p46, k3.
• Row 23: K3, yo, k12, yo, k22, yo, k12, yo, k3 (56 sts).
• Row 24: K3, p50, k3.
• Row 25: K3, yo, k13, yo, k24, yo, k13, yo, k3 (60 sts).
• Row 26: K3, p54, k3.
• Row 27: K3, yo, k15, yo, k24, yo, k15, yo, k3 (64 sts).
• Row 28: K3, p58, k3.
• Row 29: K3, yo, k17, yo, k24, yo, k17, yo, k3 (68 sts).
• Row 30: K3, p62, k3.
• Row 31: K3, yo, k19, yo, k24, yo, k19, yo, k3 (72 sts).
• Row 32: K3, p66, k3.
• Row 33: K3, yo, k22, yo, k22, yo, k22, yo, k3 (76 sts).
• Row 34: K3, p70, k3.
• Row 35: K3, yo, k25, yo, k20, yo, k25, yo, k3 (80 sts).
• Row 36: K3, p74, k3.