Shown with a cast-on count of 12 stitches.  

• Rows 1 and 9 (RS): *P2, k2, repeat from *.
• Rows 2 and 10: *P2, k2, repeat from *.
• Rows 3 and 15: P1, *k2, p2, repeat from * to last 3 sts, k2, p1.
• Rows 4 and 16: K1, *p2, k2, repeat from * to last 3 sts, p2, k1.
• Rows 5 and 13: *K2, p2, repeat from *.
• Rows 6 and 14: *K2, p2, repeat from *.
• Rows 7 and 11: K1, *p2, k2, repeat from * to last 3 sts, p2, k1.
• Rows 8 and 12: P1, *k2, p2, repeat from * to last 3 sts, k2, p1.