Shown with a cast-on count of 31 stitches.  

• Row 1 (RS): K1, *yo, ssk, p5, k2tog, yo, k1, repeat from *.
• Row 2: P3, *k5, p5, repeat from * to last 8 sts, k5, p3.
• Row 3: K2, *yo, ssk, p3, k2tog, yo, k3, repeat from * to last 9 sts, yo, ssk, p3, k2tog, yo, k2.
• Row 4: P4, *k3, p7, repeat from * to last 7 sts, k3, p4.
• Row 5: K3, *yo, ssk, p1, k2tog, yo, k5, repeat from * to last 8 sts, yo, ssk, p1, k2tog, yo, k3.
• Row 6: P5, *k1, p9, repeat from * to last 6 sts, k1, p5.
• Row 7: K4, *yo, sl1-k2tog-psso, yo, k7, repeat from * to last 7 sts, yo, sl1-k2tog-psso, yo, k4.
• Rows 8 and 16: Purl.
• Row 9: P3, *k2tog, yo, k1, yo, ssk, p5, repeat from * to last 8 sts, k2tog, yo, k1, yo, ssk, p3.
• Row 10: K3, *p5, k5, repeat from * to last 8 sts, p5, k3.
• Row 11: P2, *k2tog, yo, k3, yo, ssk, p3, repeat from * to last 9 sts, k2tog, yo, k3, yo, ssk, p2.
• Row 12: K2, *p7, k3, repeat from * to last 9 sts, p7, k2.
• Row 13: P1, *k2tog, yo, k5, yo, ssk, p1, repeat from *.
• Row 14: K1, *p9, k1, repeat from *.
• Row 15: K2tog, yo, *k7, yo, sl1-k2tog-psso, yo, repeat from * to last 9 sts, k7, yo, ssk.
• Repeat rows 1-16.