Shown with a cast-on count of 24 stitches.  

• Rows 1 and 19 (RS): Knit.
• Rows 2, 18, 20, and 36: Knit.
• Rows 3, 5, 7, and 9: *K2tog, k3, yo, k2, yo, k3, ssk, repeat from *.
• Rows 4, 6, 8, 10, 12, 14, 16, 22, 24, 26, 28, 30, 32, and 34: Purl.
• Row 11: *K3, k2tog, yo, k2, yo, ssk, k3, repeat from *.
• Row 13: *K2, k2tog, yo, k4, yo, ssk, k2, repeat from *.
• Row 15: *K1, k2tog, yo, k6, yo, ssk, k1, repeat from *.
• Row 17: *K2tog, yo, k8, yo, ssk, repeat from *.
• Rows 21, 23, 25, and 27: *K1, yo, k3, ssk, k2tog, k3, yo, k1, repeat from *.
• Row 29: *K1, yo, ssk, k6, k2tog, yo, k1, repeat from *.
• Row 31: *K2, yo, ssk, k4, k2tog, yo, k2, repeat from *.
• Row 33: *K3, yo, ssk, k2, k2tog, yo, k3, repeat from *.
• Row 35: *K4, yo, ssk, k2tog, yo, k4, repeat from *.