Shown with a cast-on count of 28 stitches.  

• Rows 1, 5, 9, 21, 25, and 29 (RS): P2, *p2, k4, p2, repeat from * to last 2 sts, p2.
• Rows 2, 4, 6, 8, 10, 12, 18, 20, 22, 24, 26, 28, and 30: K2, *k2, p4, k2, repeat from * to last 2 sts, k2.
• Rows 3, 7, 11, 19, 23, and 27: P2, *p2, 2/2 RC, p2, repeat from * to last 2 sts, p2.
• Round 13: P2, *2/2 RPC, 2/2 LPC, repeat from * to last 2 sts, p2.
• Rows 14 and 16 (WS): K2, *p2, k4, p2, repeat from * to last 2 sts, k2.
• Row 15: P2, k2, p4, *2/2 LC, p4, repeat from * to last 4 sts, k2, p2.
• Row 17: P2, *2/2 LPC, 2/2 RPC, repeat from * to last 2 sts, p2.
• Repeat rows 11-18.