Shown with a cast-on count of 1 stitch.  

• Round 1: *Yo, k1, repeat from * (2 sts).
• Rounds 2, 4-6, 8, 10, 12, and 14: Knit.
• Round 3: *K1, yo, repeat from * (4 sts).
• Round 7: *Yo, k1, repeat from * (8 sts).
• Round 9: K3tog, yo, ssk, yo, k1, yo, k2tog, yo.
• Round 11: K2, yo, ssk, yo, k1, yo, k2tog, yo, k1 (10 sts).
• Round 13: K1, yo, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, yo (12 sts).
• Round 15: K2, yo, ssk, yo, ssk, yo, k1, yo, k2tog, yo, k2tog, yo, k1 (14 sts).
• Round 16: Yo, k1, yo, knit (16 sts).
• Round 17: Yo, k3, yo, ssk, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, k2tog.
• Round 18: Yo, k5, yo, knit (18 sts).
• Round 19: Yo, k7, yo, ssk, yo, ssk, yo, k3tog, yo, k2tog, yo, k2tog.
• Round 20: Yo, k9, yo, knit (20 sts).
• Round 21: Yo, k11, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog.
• Round 22: Yo, k1, yo, k11, yo, k1, yo, knit (24 sts).
• Round 23: Yo, k3, yo, k4, k3tog, k4, yo, k3, yo, ssk, yo, k3tog, yo, k2tog.
• Round 24: Yo, k5, yo, k3, k3tog, k3, yo, k5, yo, knit (26 sts).
• Round 25: Yo, k1, k2tog, yo, k1, yo, ssk, k1, yo, k2, k3tog, k2, yo, k1, k2tog, yo, k1, yo, ssk, k1, yo, ssk, k1, k2tog.
• Round 26: Yo, k1, k2tog, yo, k3, yo, ssk, k1, yo, k1, k3tog, k1, yo, k1, k2tog, yo, k3, yo, ssk, k1, yo, k3 (28 sts).
• Round 27: Yo, k1, k2tog, yo, k5, yo, ssk, k1, yo, k3tog, yo, k1, k2tog, yo, k5, yo, ssk, k1, yo, k3tog.