Shown with a cast-on count of 4 stitches.  

• Row 1 (RS): K1, yo-k2-pyo, k1.
• Row 2: Kfb, p1, k1, kfb (6 sts).
• Row 3: Kfb, knit to last st, kfb (8 sts).
• Row 4: Kfb, *p1, k1, repeat from * to last st, kfb (10 sts).
• Row 5: Kfb, *k1, yo-k2-pyo, k1, repeat from * to last st, kfb (multiple of 4 sts, plus 4).
• Rows 6 and 8: Kfb, *p1, k1, repeat from * to last st, kfb (multiple of 2 sts, plus 4).
• Row 7: Kfb, knit to last st, kfb (2 more sts).
• Repeat rows 5-8.