Shown with a cast-on count of 10 stitches.  

• Row 0 (WS): K3, p1, p2, p1, k3.
• Row 1: K3, yo, k1, yo, k2, yo, k1, yo, k3 (14 sts).
• Row 2: K3, p2, p4, p2, k3.
• Row 3: K3, yo, k2, yo, k4, yo, k2, yo, k3 (18 sts).
• Row 4: K3, p3, p6, p3, k3.
• Row 5: K3, yo, k3, yo, k6, yo, k3, yo, k3 (22 sts).
• Row 6: K3, p4, p8, p4, k3.
• Row 7: K3, yo, k4, yo, k8, yo, k4, yo, k3 (26 sts).
• Row 8: K3, p5, p10, p5, k3.
• Row 9: K3, yo, k5, yo, k10, yo, k5, yo, k3 (30 sts).
• Row 10: K3, p6, p12, p6, k3.