Shown with a cast-on count of 9 stitches.  

• Row 1 (RS): K2, p2, ctr dbl inc, p2, k2 (11 sts).
• Row 2: P2, k2, p1, (k1, p1, k1) in next st, p1, k2, p2 (13 sts).
• Rows 3 and 9: K2, p2, k2, p1, k2, p2, k2.
• Rows 4, 6, 8, 10, and 12: P2, k2, p2, k1, p2, k2, p2.
• Rows 5 and 11: K2, p1, 2/1 LPC, p1, 2/1 RPC, p1, k2.
• Rows 7 and 13: K2, p2, 2/1/2 RPC, p2, k2.
• Repeat rows 8-13.