Shown with a cast-on count of 40 stitches.  

• Rows 1 and 19 (RS): *IncR, incR, k6, k2tog, k2tog, k2tog, k2tog, p6, incL, incL, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30: Purl.
• Rows 3 and 15: *IncR, incR, k5, k2tog, k2tog, k2tog, k2tog, p7, incL, incL, repeat from *.
• Rows 5 and 13: *IncR, incR, k4, k2tog, k2tog, k2tog, k2tog, p8, incL, incL, repeat from *.
• Rows 7 and 11: *IncR, incR, k3, k2tog, k2tog, k2tog, k2tog, p9, incL, incL, repeat from *.
• Row 9: *IncR, incR, k2, k2tog, k2tog, k2tog, k2tog, p10, incL, incL, repeat from *.
• Row 17: *IncR, incR, k7, k2tog, k2tog, k2tog, k2tog, p5, incL, incL, repeat from *.
• Rows 21 and 29: *IncR, incR, k8, k2tog, k2tog, k2tog, k2tog, p4, incL, incL, repeat from *.
• Rows 23 and 27: *IncR, incR, k9, k2tog, k2tog, k2tog, k2tog, p3, incL, incL, repeat from *.
• Row 25: *IncR, incR, k10, k2tog, k2tog, k2tog, k2tog, p2, incL, incL, repeat from *.