Shown with a cast-on count of 32 stitches.  

• Rounds 1 and 20: *P2, k12, p2, repeat from *.
• Rounds 2 and 19: *P1, k2, p4, k2, p4, k2, p1, repeat from *.
• Rounds 3 and 18: *K4, p3, k2, p3, k4, repeat from *.
• Rounds 4 and 17: *K5, p2, k2, p2, k5, repeat from *.
• Rounds 5 and 16: *K6, p1, k2, p1, k6, repeat from *.
• Rounds 6 and 15: *K1, p1, k12, p1, k1, repeat from *.
• Rounds 7 and 14: *K1, p2, k10, p2, k1, repeat from *.
• Rounds 8 and 13: *K1, p3, k8, p3, k1, repeat from *.
• Rounds 9 and 12: *K1, p4, k2, p2, k2, p4, k1, repeat from *.
• Rounds 10-11: *K6, p4, k6, repeat from *.
• Repeat rounds 1-20.