Shown with a cast-on count of 36 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, and 15 (WS): Purl.
• Row 2: K1, *k2tog, yo, k1, yo, k2tog, k3, k1, k3, k2tog, yo, k1, yo, k2tog, repeat from * to last st, k1.
• Row 4: K1, *yo, k2tog, k2, yo, k2tog, k2, k1, k2, k2tog, yo, k2, k2tog, yo, repeat from * to last st, k1.
• Row 6: K1, *k2, k2tog, yo, k2, k2tog, yo, k1, yo, k2tog, k2, yo, k2tog, k2, repeat from * to last st, k1.
• Row 8: K1, *k1, yo, k1, k2tog, yo, k2, k2tog, k1, k2tog, k2, yo, k2tog, k1, yo, k1, repeat from * to last st, k1.
• Row 10: K1, *k1, yo, k1, yo, k2tog, k1, k2tog, k1, k2tog, k3, k2tog, yo, k1, yo, k1, repeat from * to last st, k1.
• Row 12: K1, *k3, k2tog, yo, k2tog, yo, k3, yo, k2tog, yo, k2tog, k3, repeat from * to last st, k1.
• Row 14: K1, *yo, yo, k2tog, k1, k2tog, k3, k1, k3, k2tog, k1, k2tog, yo, yo, repeat from * to last st, k1.
• Row 16: K1, *k1, k2tog, yo, k2tog, k1, yo, k2, k1, k2, yo, k1, k2tog, yo, k2tog, k1, repeat from * to last st, k1.