Shown with a cast-on count of 7 stitches.  

• Row 1 (RS): K7.
• Row 2: K2, yo, p3, yo, k2 (9 sts).
• Row 3: K2, (k1, yo, k1) in next st, k3, (k1, yo, k1) in next st, k2 (13 sts).
• Row 4: K2, yo, p9, yo, k2 (15 sts).
• Row 5: K2, (k1, yo, k1) in next st, k3, sl2-k1-p2sso, k3, (k1, yo, k1) in next st, k2 (17 sts).
• Row 6: K2, yo, purl to last 2 sts, yo, k2 (19 sts).
• Row 7: K2, (k1, yo, k1) in next st, k3, yo, k2, sl2-k1-p2sso, k2, yo, k3, (k1, yo, k1) in next st, k2 (23 sts).