Shown with a cast-on count of 9 stitches.  

• Row 1 (RS): Sl1 wyib, k1, yo, k2tog, [yo, k1] 3 times, yo, k2 (13 sts).
• Row 2: P11, k2.
• Row 3: Sl1 wyib, k1, yo, k2tog, yo, k3, yo, k1, yo, k3, yo, k2 (17 sts).
• Row 4: P15, k2.
• Row 5: Sl1 wyib, k1, yo, k2tog, yo, k5tog, yo, k1, yo, k5tog, yo, k2 (13 sts).
• Row 6: BO 4 sts, p6, k2 (9 sts).