Shown with a cast-on count of 2 stitches.  

• Rows 1 and 13 (RS): *Yo, k1, repeat from * (multiple of 2 sts).
• Rows 2, 6, 10, 12, 14, 16, and 18: Knit.
• Rows 3, 5, 7, 9, 11, 15, and 17: Knit.
• Rows 4 and 8: *Yo, k1, repeat from * (multiple of 2 sts).
• Row 19: *Ssk, k3, k2tog, yo, k1, yo, repeat from *.
• Row 20: *K5, yo, k3, yo, repeat from * (multiple of 10 sts).
• Row 21: *Ssk, k1, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, repeat from *.
• Row 22: *K3, yo, k2tog, yo, k3, yo, ssk, yo, repeat from * (multiple of 12 sts).
• Row 23: *K3tog tbl, yo, k2tog, yo, k2tog, k1, ssk, yo, ssk, yo, repeat from * (multiple of 10 sts).
• Row 24: *Ssk, yo, k3tog tbl, yo, k2tog, yo, k3, yo, repeat from *.
• Row 25: *Ssk, k1, k2tog, yo, k5, yo, repeat from *.
• Row 26: *K3tog tbl, yo, k7, yo, repeat from *.
• Row 27: *[Yo, k1] 7 times, yo, k3tog tbl, repeat from * (multiple of 16 sts).