Shown with a cast-on count of 20 stitches.  

• Round 1: P4, M1L, M1R, p2, *p2, M1L, M1R, p2, repeat from * to last 6 sts, p2, M1L, M1R, p4 (multiple of 6 sts, plus 16).
• Round 2: P4, k2, p2, *p2, k2, p2, repeat from * to last 8 sts, p2, k2, p4.
• Round 3: P4, k1, M1L, M1R, k1, p2, *p2, k1, M1L, M1R, k1, p2, repeat from * to last 8 sts, p2, k1, M1L, M1R, k1, p4 (multiple of 8 sts, plus 20).
• Rounds 4 and 10: P4, k4, p2, *p2, k4, p2, repeat from * to last 10 sts, p2, k4, p4.
• Round 5: P2, 2/2 RPC, 2/2 LPC, *2/2 RPC, 2/2 LPC, repeat from * to last 10 sts, 2/2 RPC, 2/2 LPC, p2.
• Rounds 6 and 8: P2, k2, p4, k2, *k2, p4, k2, repeat from * to last 10 sts, k2, p4, k2, p2.
• Round 7: P2, k2, p4, *2/2 RC, p4, repeat from * to last 12 sts, 2/2 RC, p4, k2, p2.
• Round 9: P2, 2/2 LPC, 2/2 RPC, *2/2 LPC, 2/2 RPC, repeat from * to last 10 sts, 2/2 LPC, 2/2 RPC, p2.