Shown with a cast-on count of 28 stitches.  

• Rows 1 and 5 (RS): P4, [2/2 RC, p4] 3 times.
• Rows 2, 4, 6, and 16: [K4, p4] 3 times, k4.
• Row 3: [P4, k4] 3 times, p4.
• Row 7: P2, [2/2 RPC, 2/2 LPC] 3 times, p2.
• Rows 8, 10, 12, and 14: K2, p2, [k4, p4] twice, k4, p2, k2.
• Rows 9 and 13: P2, k2, p4, 2/2 RC, p4, 2/2 RC, p4, k2, p2.
• Row 11: P2, k2, p4, k4, p4, k4, p4, p2, k2.
• Row 15: P2, [2/2 LPC, 2/2 RPC] 3 times, p2.