Shown with a cast-on count of 20 stitches.  

• Row 1 (RS): P1, *k1, yo, k7, yo, k1, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 2: P1, *p1, k1, p2tog, p3, p2tog, k1, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 3: P1, *k2, yo, k5, yo, k2, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 4: P1, *p2, k1, p2tog, p1, p2tog, k1, p2, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 5: P1, *k3, yo, k3, yo, k3, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 6: P1, *p1, p2tog, k1, p3, k1, p2tog, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 7: P1, *k4, yo, k1, yo, k4, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 8: P1, *p2, p2tog, k1, p1, k1, p2tog, p2, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 9: P1, *k5, yo, k4, yo, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 10: P1, *k1, p2tog, p2, k1, p2, p2tog, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 11: P1, *k6, yo, k3, yo, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 12: P1, *k1, p2tog, p1, k1, p3, p2tog, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 13: P1, *k7, yo, k2, yo, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 14: P1, *k1, p2tog, k1, p4, p2tog, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).
• Row 15: P1, *k8, yo, k1, yo, repeat from * to last st, sl1 wyif (multiple of 11 sts, plus 2).
• Row 16: P1, *k1, p1, k1, p2tog, p3, p2tog, p1, repeat from * to last st, sl1 wyif (multiple of 9 sts, plus 2).