Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): *K2, k2tog, yo, k1, yo, k2tog, k1, repeat from * to last st, k1.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: *K1, k2tog, yo, k3, yo, k2tog, repeat from * to last st, k1.
• Row 5: *K3, yo, k3tog, yo, k2, repeat from * to last st, k1.
• Row 7: *K1, yo, k2tog, k3, k2tog, yo, repeat from * to last st, k1.
• Row 9: *K2, yo, k2tog, k1, k2tog, yo, k1, repeat from * to last st, k1.
• Row 11: K2tog, *yo, k5, yo, k3tog, repeat from * to last 7 sts, yo, k5, yo, k2tog.