Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): K2, *k1, yo, k5, k2tog, repeat from * to last st, k1.
• Rows 2, 4, 6, 8, and 10: Purl.
• Row 3: K2, *yo, k1, yo, k4, k3tog, repeat from * to last st, k1.
• Row 5: K2, *[k1, yo] twice, k3, k3tog, repeat from * to last st, k1.
• Row 7: K2, *k2, yo, k1, yo, k2, k3tog, repeat from * to last st, k1.
• Row 9: K2, *k3, [yo, k1] twice, k3tog, repeat from * to last st, k1.