Shown with a cast-on count of 39 stitches.  

• Row 1 (RS): K5, *k2tog, yo, k1, yo, ssk, k7, repeat from * to last 10 sts, k2tog, yo, k1, yo, ssk, k5.
• Rows 2, 4, 6, and 8: Purl.
• Row 3: K4, *k2tog, yo, k3, yo, ssk, k5, repeat from * to last 11 sts, k2tog, yo, k3, yo, ssk, k4.
• Row 5: K3, *k2tog, yo, k5, yo, ssk, k3, repeat from *.
• Row 7: K2, *k2tog, yo, k7, yo, ssk, k1, repeat from * to last st, k1.
• Repeat rows 1-8.