Shown with a cast-on count of 5 stitches.  

• Row 3 (RS): K4, kfb (6 sts).
• Rows 4, 6, 8, and 12: Kfb, knit to last 2 sts, k2tog.
• Row 5: Knit to last st, kfb (7 sts).
• Row 7: Knit to last st, kfb (8 sts).
• Row 9: Knit to last st, kfb (9 sts).
• Row 10: Kfb, k2tog, *yo, k2tog, repeat from *.
• Row 11: Knit to last st, kfb (10 sts).