Shown with a cast-on count of 36 stitches.  

• Rows 1, 3, and 5 (WS): *P18, repeat from *.
• Row 2: *[K2tog] 3 times, [yo, k1] 3 times, [k1, yo] 3 times, [k2tog] 3 times, repeat from *.
• Row 4: *K18, repeat from *.
• Row 6: *[K2tog] twice, k1, [k1, yo] 3 times, k2tog, [yo, k1] 3 times, k1, [k2tog] twice, repeat from * (multiple of 19 sts).
• Rows 7 and 9: *P19, repeat from *.
• Row 8: *K19, repeat from *.
• Row 10: *K2tog, k2tog, k2tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k2tog, k2tog, k2tog, repeat from * (multiple of 21 sts).
• Rows 11 and 13: *P21, repeat from *.
• Row 12: *K21, repeat from *.
• Row 14: *K3tog, k3tog, [yo, k1] 9 times, yo, k3tog, k3tog, repeat from * (multiple of 23 sts).
• Rows 15, 17, 19, and 21: *P23, repeat from *.
• Rows 16 and 20: *K23, repeat from *.
• Row 18: *K3tog, k3tog, yo, k2tog, [yo, k1] 7 times, yo, k2tog, yo, k3tog, k3tog, repeat from *.
• Row 22: *K3tog, k2tog, k2tog, [yo, k1] 9 times, yo, k2tog, k2tog, k3tog, repeat from * (multiple of 25 sts).
• Rows 23, 25, and 27: *P25, repeat from *.
• Row 24: *K25, repeat from *.
• Row 26: *K3tog, k3tog, k2tog, [yo, k1] 9 times, yo, k2tog, k3tog, k3tog, repeat from *.
• Row 28: *K2tog, k2tog, [yo, k2tog] 3 times, [yo, k1] 5 times, yo, [k2tog, yo] 3 times, k2tog, k2tog, repeat from * (multiple of 27 sts).
• Row 29: *P27, repeat from *.