Shown with a cast-on count of 32 stitches.  

• Row 1 (RS): P1, *k1, yo, ssk, k2, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, k1, repeat from * to last st, p1.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, and 18: Purl.
• Row 3: P1, *k2, yo, ssk, k2, yo, sl1-k2tog-psso, yo, k2, k2tog, yo, k2, repeat from * to last st, p1.
• Row 5: P1, *k3, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, k3, repeat from * to last st, p1.
• Row 7: P1, *k4, yo, sl1-k2tog-psso, yo, k2, k2tog, yo, k4, repeat from * to last st, p1.
• Row 9: P1, *k4, k2tog, yo, k2, k2tog, yo, k5, repeat from * to last st, p1.
• Row 11: P1, *k3, k2tog, yo, k2, k2tog, yo, k1, yo, ssk, k3, repeat from * to last st, p1.
• Row 13: P1, *k2, k2tog, yo, k2, k2tog, yo, k3, yo, ssk, k2, repeat from * to last st, p1.
• Row 15: P1, *k1, k2tog, yo, k2, k2tog, yo, k1, yo, ssk, k2, yo, ssk, k1, repeat from * to last st, p1.
• Row 17: P1, *k2tog, yo, k2, k2tog, yo, k3, yo, ssk, k2, yo, ssk, repeat from * to last st, p1.