Shown with a cast-on count of 23 stitches.  

• Row 1 (RS): K3, p17, k3.
• Row 2: K3, yo, k1, yo, k2tog, *[yo, k1] twice, k2tog, repeat from * to last 5 sts, [yo, k1] twice, yo, k3 (30 sts).
• Row 3: K3, p24, k3.
• Row 4: K3, yo, k1, yo, k1, k2tog, *[yo, k1] twice, k1, k2tog, repeat from * to last 8 sts, yo, k1, yo, k3, yo, k1, yo, k3 (38 sts).
• Row 5: K3, p3, *p2tog, p4, repeat from * to last 8 sts, p2tog, p3, k3 (33 sts).