Shown with a cast-on count of 18 stitches.  

• Row 1 (RS): *P4, k2, repeat from *.
• Row 2: *P2, k4, repeat from *.
• Row 3: *P3, k3, repeat from *.
• Row 4: *P3, k3, repeat from *.
• Row 5: *P2, k4, repeat from *.
• Row 6: *P4, k2, repeat from *.
• Row 7: P1, *k4, p2, repeat from * to last 5 sts, k4, p1.
• Row 8: K1, p4, *k2, p4, repeat from * to last st, k1.
• Row 9: P1, *k3, p3, repeat from * to last 5 sts, k3, p2.
• Row 10: K2, p3, *k3, p3, repeat from * to last st, k1.
• Row 11: P1, *k2, p4, repeat from * to last 5 sts, k2, p3.
• Row 12: K3, p2, *k4, p2, repeat from * to last st, k1.