Shown with a cast-on count of 6 stitches.  

• Row 1 (RS): K3, yo, k1, yo, k2 (8 sts).
• Row 3 (RS): K3, yo, k2, yo, k3 (10 sts).
• Row 5 (RS): K3, yo, kfb, k1, yo, ssk, yo, k3 (13 sts).
• Row 7 (RS): K3, yo, k1, purl (14 sts).
• Row 9 (RS): K3, yo, k1, yo, k1, purl (16 sts).
• Row 11 (RS): K3, yo, k1, yo, k3, purl (18 sts).