Shown with a cast-on count of 33 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, and 15 (RS): Purl.
• Row 2: K1, *ssk, k3, yo, k2tog, yo, k1, yo, ssk, yo, k3, k2tog, k1, repeat from *.
• Row 4: K1, *ssk, k2, yo, k2tog, yo, k3, yo, ssk, yo, k2, k2tog, k1, repeat from *.
• Row 6: K1, *ssk, k1, yo, k2tog, yo, k5, yo, ssk, yo, k1, k2tog, k1, repeat from *.
• Row 8: K1, *ssk, yo, k2tog, yo, k7, yo, ssk, yo, k2tog, k1, repeat from *.
• Row 10: K1, *[ssk, yo] twice, k7, [yo, k2tog] twice, k1, repeat from *.
• Row 12: K1, *yo, ssk, yo, k3, k2tog, k1, ssk, k3, yo, k2tog, yo, k1, repeat from *.
• Row 14: K1, *yo, ssk, yo, k2, k2tog, k1, ssk, k2, yo, k2tog, yo, k3, repeat from *.
• Row 16: K1, *yo, ssk, yo, k1, k2tog, k1, ssk, k1, yo, k2tog, yo, k5, repeat from *.