Shown with a cast-on count of 2 stitches.  

• Rounds 1-2, 4, and 8: Knit.
• Rounds 3 and 5: *Yo, k1, repeat from * (multiple of 2 sts).
• Round 6: *K2, k2tog, repeat from * (multiple of 3 sts).
• Round 7: *Yo, k1, yo, k2tog, repeat from * (multiple of 4 sts).
• Round 9: *[Yo, k1] twice, yo, k2tog, repeat from * (multiple of 6 sts).
• Round 10: *K4, k2tog, repeat from * (multiple of 5 sts).
• Round 11: *[Yo, k1] 3 times, k2tog, repeat from * (multiple of 7 sts).
• Round 12: *K5, k2tog, repeat from * (multiple of 6 sts).
• Round 13: *[Yo, k1] twice, yo, k2, k2tog, repeat from * (multiple of 8 sts).
• Round 14: *K6, k2tog, repeat from * (multiple of 7 sts).
• Round 15: *[Yo, k1] twice, yo, k3, k2tog, repeat from * (multiple of 9 sts).
• Round 16: *K7, k2tog, repeat from * (multiple of 8 sts).
• Round 17: *[Yo, k1] twice, yo, k4, k2tog, repeat from * (multiple of 10 sts).
• Round 18: *K8, k2tog, repeat from * (multiple of 9 sts).
• Round 19: *[Yo, k1] twice, yo, k5, k2tog, repeat from * (multiple of 11 sts).
• Round 20: *K9, k2tog, repeat from * (multiple of 10 sts).
• Round 21: *[Yo, k1] twice, yo, k6, k2tog, repeat from * (multiple of 12 sts).
• Round 22: *K10, k2tog, repeat from * (multiple of 11 sts).
• Round 23: *[Yo, k1] twice, yo, k7, k2tog, repeat from * (multiple of 13 sts).
• Round 24: *K11, k2tog, repeat from * (multiple of 12 sts).
• Round 25: *[Yo, k1] twice, yo, k8, k2tog, repeat from * (multiple of 14 sts).
• Round 26: *K12, k2tog, repeat from * (multiple of 13 sts).
• Round 27: *[Yo, k1] twice, yo, k9, k2tog, repeat from * (multiple of 15 sts).
• Round 28: *K13, k2tog, repeat from * (multiple of 14 sts).
• Round 29: *[Yo, k1] twice, yo, k10, k2tog, repeat from * (multiple of 16 sts).
• Round 30: *K14, k2tog, repeat from * (multiple of 15 sts).
• Round 31: *[Yo, k1] twice, yo, k11, k2tog, repeat from * (multiple of 17 sts).
• Round 32: *K15, k2tog, repeat from * (multiple of 16 sts).
• Round 33: *[Yo, k1] twice, yo, k12, k2tog, repeat from * (multiple of 18 sts).
• Round 34: *K16, k2tog, repeat from * (multiple of 17 sts).
• Round 35: *[Yo, k1] twice, yo, k13, k2tog, repeat from * (multiple of 19 sts).
• Round 36: *K17, k2tog, repeat from * (multiple of 18 sts).
• Rounds 37-39: Purl.