Shown with a cast-on count of 26 stitches.  

• Row 1 (RS): P2, *yo, ssk, k8, p2, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, and 36: K2, *p10, k2, repeat from *.
• Row 3: P2, *yo, k1, ssk, k7, p2, repeat from *.
• Row 5: P2, *yo, k2, ssk, k6, p2, repeat from *.
• Row 7: P2, *yo, k3, ssk, k5, p2, repeat from *.
• Row 9: P2, *yo, k4, ssk, k4, p2, repeat from *.
• Row 11: P2, *yo, k5, ssk, k3, p2, repeat from *.
• Row 13: P2, *yo, k6, ssk, k2, p2, repeat from *.
• Row 15: P2, *yo, k7, ssk, k1, p2, repeat from *.
• Row 17: P2, *yo, k8, ssk, p2, repeat from *.
• Row 19: P2, *k8, k2tog, yo, p2, repeat from *.
• Row 21: P2, *k7, k2tog, k1, yo, p2, repeat from *.
• Row 23: P2, *k6, k2tog, k2, yo, p2, repeat from *.
• Row 25: P2, *k5, k2tog, k3, yo, p2, repeat from *.
• Row 27: P2, *k4, k2tog, k4, yo, p2, repeat from *.
• Row 29: P2, *k3, k2tog, k5, yo, p2, repeat from *.
• Row 31: P2, *k2, k2tog, k6, yo, p2, repeat from *.
• Row 33: P2, *k1, k2tog, k7, yo, p2, repeat from *.
• Row 35: P2, *k2tog, k8, yo, p2, repeat from *.
• Repeat rows 1-36.