Shown with a cast-on count of 20 stitches.  

• Row 1 (WS): *[P1, k1] 5 times, repeat from *.
• Row 2: *P2, [k1, p1] 3 times, k2, repeat from *.
• Row 3: *P3, [k1, p1] twice, k3, repeat from *.
• Row 4: *P4, k1, p1, k4, repeat from *.
• Row 5: *P5, k5, repeat from *.
• Row 6: *P5, k5, repeat from *.
• Row 7: *K1, p4, k4, p1, repeat from *.
• Row 8: *P1, k1, p3, k3, p1, k1, repeat from *.
• Row 9: *K1, p1, k1, p2, k2, p1, k1, p1, repeat from *.
• Row 10: *[P1, k1] 5 times, repeat from *.
• Row 11: *[K1, p1] 5 times, repeat from *.
• Row 12: *[P1, k1] twice, k1, p2, k1, p1, k1, repeat from *.
• Row 13: *K1, p1, k3, p3, k1, p1, repeat from *.
• Row 14: *P1, k4, p4, k1, repeat from *.
• Row 15: *K5, p5, repeat from *.
• Row 16: *K5, p5, repeat from *.
• Row 17: *K4, p1, k1, p4, repeat from *.
• Row 18: *K3, [p1, k1] twice, p3, repeat from *.
• Row 19: *K2, [p1, k1] 3 times, p2, repeat from *.
• Row 20: *[K1, p1] 5 times, repeat from *.