Shown with a cast-on count of 31 stitches.  

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