Shown with a cast-on count of 36 stitches.  

• Rows 1 and 19 (WS): *K2, yo, ssk, p10, k2tog, yo, k2, repeat from *.
• Rows 2 and 20: *P2, k14, p2, repeat from *.
• Rows 3 and 17: *P2, k4, p6, k4, p2, repeat from *.
• Rows 4 and 18: *K2, p4, k6, p4, k2, repeat from *.
• Rows 5 and 15: *P4, k4, p2, k4, p4, repeat from *.
• Rows 6 and 16: *K4, p4, k2, p4, k4, repeat from *.
• Rows 7 and 13: *P6, k6, p6, repeat from *.
• Rows 8 and 14: *K6, p6, k6, repeat from *.
• Rows 9 and 11: *P7, yo, ssk, k2tog, yo, p7, repeat from *.
• Rows 10 and 12: *K8, p2, k8, repeat from *.