Shown with a cast-on count of 18 stitches.  

• Row 1 (RS): K10, kfb, k3, p1, k1, p1, k1 (19 sts).
• Row 2: P2, k1, p1, p15.
• Row 3: K11, kfb, k3, p1, k1, p1, k1 (20 sts).
• Row 4: P2, k1, p1, p16.
• Row 5: K12, kfb, k3, p1, k1, p1, k1 (21 sts).
• Row 6: P2, k1, p1, p17.
• Row 7: K13, kfb, yo, sl1-k2tog-psso, yo, p1, k1, p1, k1 (22 sts).
• Row 8: P2, k1, p1, p18.