Shown with a cast-on count of 9 stitches.  

• Round 1: K9.
• Round 2: [Yo, k1] 9 times (18 sts).
• Rounds 3-5, 7-12, 14, 16, 18, 20, 22, 24, and 26: Knit.
• Round 6: *Yo, k1, repeat from * (36 sts).
• Round 13: *Yo, k1, repeat from * (72 sts).
• Round 15: *K1, yo, k4, sl2-k1-p2sso, k4, yo, repeat from *.
• Round 17: *K2, yo, k3, sl2-k1-p2sso, k3, yo, k1, repeat from *.
• Round 19: *K3, yo, k2, sl2-k1-p2sso, k2, yo, k2, repeat from *.
• Round 21: *K4, yo, k1, sl2-k1-p2sso, k1, yo, k3, repeat from *.
• Round 23: *K5, yo, sl2-k1-p2sso, yo, k4, repeat from *.
• Round 25: *K6, yo, ssk, k4, repeat from *.