Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): K4, *k2tog, yo, k2, yo, ssk, repeat from * to last 3 sts, k2tog, yo, k1.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K3, *k2tog, yo, k2, yo, ssk, repeat from * to last 4 sts, k2tog, yo, k2.
• Row 5: K2, *k2tog, yo, k2, yo, ssk, repeat from * to last 5 sts, k2tog, yo, k3.
• Row 7: K1, *k2tog, yo, k2, yo, ssk, repeat from * to last 6 sts, k2tog, yo, k4.
• Row 9: K3, yo, k2tog, *ssk, yo, k2, yo, k2tog, repeat from * to last 2 sts, k2.
• Row 11: K2, yo, k2tog, *ssk, yo, k2, yo, k2tog, repeat from * to last 3 sts, k3.