Shown with a cast-on count of 2 stitches.  

• Round 1: *Yo, k1, repeat from * (multiple of 2 sts).
• Rounds 2 and 4: Knit.
• Round 3: *[Yo, k1] twice, repeat from * (multiple of 4 sts).
• Round 5: *[Yo, k1] twice, yo, k2tog, repeat from * (multiple of 6 sts).
• Round 6: *K4, k2tog, repeat from * (multiple of 5 sts).
• Round 7: *[Yo, k1] 3 times, k2tog, repeat from * (multiple of 7 sts).
• Round 8: *K5, k2tog, repeat from * (multiple of 6 sts).
• Round 9: *[Yo, k1] 3 times, k1, k2tog, repeat from * (multiple of 8 sts).
• Round 10: *K6, k2tog, repeat from * (multiple of 7 sts).
• Round 11: *[Yo, k1] 3 times, k2, k2tog, repeat from * (multiple of 9 sts).
• Round 12: *K7, k2tog, repeat from * (multiple of 8 sts).
• Round 13: *[Yo, k1] 3 times, k3, k2tog, repeat from * (multiple of 10 sts).
• Round 14: *K8, k2tog, repeat from * (multiple of 9 sts).
• Round 15: *[Yo, k1] 3 times, k4, k2tog, repeat from * (multiple of 11 sts).
• Round 16: *K9, k2tog, repeat from * (multiple of 10 sts).
• Round 17: *[Yo, k1] 3 times, k5, k2tog, repeat from * (multiple of 12 sts).
• Round 18: *K10, k2tog, repeat from * (multiple of 11 sts).
• Round 19: *[Yo, k1] 3 times, k6, k2tog, repeat from * (multiple of 13 sts).
• Round 20: *K11, k2tog, repeat from * (multiple of 12 sts).
• Round 21: *[Yo, k1] 3 times, k7, k2tog, repeat from * (multiple of 14 sts).
• Round 22: *K12, k2tog, repeat from * (multiple of 13 sts).
• Round 23: *[Yo, k1] 3 times, k8, k2tog, repeat from * (multiple of 15 sts).
• Round 24: *K13, k2tog, repeat from * (multiple of 14 sts).
• Round 25: *[Yo, k1] 3 times, k9, k2tog, repeat from * (multiple of 16 sts).
• Round 26: *K14, k2tog, repeat from * (multiple of 15 sts).
• Round 27: *Yo, ssk, k11, k2tog, repeat from * (multiple of 14 sts).
• Round 28: *Yo, k1, yo, k13, repeat from * (multiple of 16 sts).
• Round 29: *Yo, k3, yo, ssk, k9, k2tog, repeat from *.
• Round 30: *Yo, k5, yo, k11, repeat from * (multiple of 18 sts).
• Round 31: *Yo, k7, yo, ssk, k7, k2tog, repeat from *.
• Round 32: *Yo, k9, yo, k9, repeat from * (multiple of 20 sts).
• Round 33: *Yo, k5, yo, ssk, k4, yo, ssk, k5, k2tog, repeat from *.
• Round 34: *Yo, k13, yo, k7, repeat from * (multiple of 22 sts).
• Round 35: *Yo, k4, [k1, yo, ssk] twice, k5, yo, ssk, k3, k2tog, repeat from *.
• Round 36: *Yo, k17, yo, k5, repeat from * (multiple of 24 sts).
• Round 37: *Yo, k9, yo, ssk, k8, yo, ssk, k1, k2tog, repeat from *.
• Round 38: *Yo, k21, yo, k3, repeat from * (multiple of 26 sts).
• Round 39: *Yo, k23, yo, sl1-k2tog-psso, repeat from *.