Shown with a cast-on count of 20 stitches.  

• Round 1: Knit.
• Round 2: K7, p2, 1/1 LC, p2, k7.
• Round 3: K7, p2, k2, p2, k7.
• Round 4: K5, 1/1 RPC, p1, 1/1 RPC, 1/1 LPC, p1, 1/1 LPC, k5.
• Round 5: K6, p2, k4, p2, k6.
• Round 6: K5, 1/1 RPC, p1, 2/2 LC, p1, 1/1 LPC, k5.
• Round 7: K5, p3, k4, p3, k5.
• Round 8: K3, 1/1 RPC, p1, 2/2 RC, 2/2 LC, p1, 1/1 LPC, k3.
• Round 9: K2, 1/1 RPC, p2, k8, p2, 1/1 LPC, k2.
• Round 10: K1, 1/1 RPC, p1, 2/2 RPC, k4, 2/2 LPC, p1, 1/1 LPC, k1.
• Round 11: K2, p2, k2, p2, k4, p2, k2, p2, k2.
• Round 12: P3, 2/1 RPC, p2, 2/2 LC, p2, 2/1 LPC, p3.
• Round 13: P3, k2, p3, k4, p3, k2, p3.
• Round 14: P2, 2/1 RPC, p3, k4, p3, 2/1 LPC, p2.
• Rounds 15 and 17: P2, k2, p4, k4, p4, k2, p2.
• Round 16: P2, k2, p4, 2/2 LC, p4, k2, p2.
• Round 18: P2, 2/2 LPC, 2/2 RC, 2/2 LC, 2/2 RPC, p2.
• Round 19: P4, k12, p4.
• Round 20: P4, 2/2 RPC, k4, 2/2 LPC, p4.
• Round 21: P4, k2, p2, k4, p2, k2, p4.
• Repeat rounds 12-21.