Shown with a cast-on count of 28 stitches.  

• Round 1: Yo, k5, yo, k1, *yo, k2, sl2-k1-p2sso, k2, yo, k1, repeat from * to last 6 sts, yo, k5, yo, k1 (multiple of 8 sts, plus 16).
• Round 2: Yo, k1, yo, k2tog, k1, ssk, yo, k2, *k1, yo, k2tog, k1, ssk, yo, k2, repeat from * to last 8 sts, k1, yo, k2tog, k1, ssk, yo, k1, yo, k1 (multiple of 8 sts, plus 18).
• Round 3: Yo, k3, yo, sl1-k2tog-psso, yo, k3, *k2, yo, sl1-k2tog-psso, yo, k3, repeat from * to last 9 sts, k2, yo, sl1-k2tog-psso, yo, k3, yo, k1 (multiple of 8 sts, plus 20).