Shown with a cast-on count of 13 stitches.  

• Row 1 (RS): P1, *(k1, yo, k1) in next st, p1, sl1-k2tog-psso, repeat from * to last 2 sts, (k1, yo, k1) in next st, sl1 wyif (multiple of 5 sts, plus 5).
• Rows 2 and 4: Purl.
• Row 3: P1, *sl1-k2tog-psso, p1, (k1, yo, k1) in next st, repeat from * to last 4 sts, sl1-k2tog-psso, sl1 wyif (multiple of 5 sts, plus 3).