Shown with a cast-on count of 18 stitches.  

• Row 1 (RS): K1, *k1, k2tog, yo, k2, yo, ssk, k1, repeat from * to last st, k1.
• Rows 2, 4, 6, 8, 10, 12, 14, and 16: Purl.
• Row 3: K1, *k2tog, yo, k4, yo, ssk, repeat from * to last st, k1.
• Row 5: K2tog, *yo, k2, yo, ssk, k2, k2tog, repeat from *, yo.
• Row 7: K1, *k4, yo, ssk, k2tog, yo, repeat from * to last st, k1.
• Row 9: K1, *k1, yo, ssk, k2, k2tog, yo, k1, repeat from * to last st, k1.
• Row 11: K1, *k2, yo, ssk, k2tog, yo, k2, repeat from * to last st, k1.
• Row 13: Yo, *ssk, k2, k2tog, yo, k2, yo, repeat from * to last 2 sts, ssk.
• Row 15: K1, *yo, ssk, k2tog, yo, k4, repeat from * to last st, k1.