Shown with a cast-on count of 17 stitches.  

• Rounds 1, 3, 5, 15, and 17: P5, k1, [sl1 wyif, k1] 3 times, p5.
• Round 7: P5, k1, sl1 wyif, k3tog, sl1 wyif, k1, p5 (15 sts).
• Round 9: P5, [k1, sl1 wyif] twice, (k1, yo, k1) in next st, p5 (17 sts).
• Round 11: P5, k3tog, [sl1 wyif, k1] twice, p5 (15 sts).
• Round 13: P5, k1, sl1 wyif, (k1, yo, k1) in next st, sl1 wyif, k1, p5 (17 sts).