Shown with a cast-on count of 18 stitches.  

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