Shown with a cast-on count of 34 stitches.  

• Row 1 (RS): P2, *k8, yo, k1 PB, yo, k3, k2tog, p2, repeat from * (multiple of 17 sts, plus 2).
• Rows 2 and 4: K2, *p2tog, p13, k2, repeat from * (multiple of 16 sts, plus 2).
• Row 3: P2, *k9, yo, k1 PB, yo, k2, k2tog, p2, repeat from * (multiple of 17 sts, plus 2).
• Row 5: P2, *ssk, k4, yo, k1 PB, yo, k3, yo, k1 PB, yo, k1, k2tog, p2, repeat from * (multiple of 18 sts, plus 2).
• Rows 6 and 12: K2, *p2tog, p12, ssp, k2, repeat from * (multiple of 16 sts, plus 2).
• Row 7: P2, *ssk, k3, yo, k1 PB, yo, k8, p2, repeat from * (multiple of 17 sts, plus 2).
• Rows 8 and 10: K2, *p13, ssp, k2, repeat from * (multiple of 16 sts, plus 2).
• Row 9: P2, *ssk, k2, yo, k1 PB, yo, k9, p2, repeat from * (multiple of 17 sts, plus 2).
• Row 11: P2, *ssk, k1, yo, k1 PB, yo, k3, yo, k1 PB, yo, k4, k2tog, p2, repeat from * (multiple of 18 sts, plus 2).