Shown with a cast-on count of 23 stitches.  

• Rows 1 and 3 (WS): K8, p3, k1, p3, k8.
• Row 2: P8, wrap 7 sts, p8.
• Row 4: P5, 3/3 RPC, p1, 3/3 LPC, p5.
• Rows 5 and 15: K5, p3, k7, p3, k5.
• Row 6: P2, 3/3 RPC, p7, 3/3 LPC, p2.
• Row 7: K2, p3, k13, p3, k2.
• Row 8: P2, k3, p6, 1-to-5 inc, p6, k3, p2 (27 sts).
• Row 9: K2, p3, k6, p5, k6, p3, k2.
• Row 10: P2, 3/1 LPC, p5, k5, p5, 3/1 RPC, p2.
• Row 11: K3, p3, k5, p5, k5, p3, k3.
• Row 12: P3, 3/1 LPC, p4, ssk, k1, k2tog, p4, 3/1 RPC, p3 (25 sts).
• Row 13: K4, p3, k4, p3, k4, p3, k4.
• Row 14: P4, 3/1 LPC, p3, sl1-k2tog-psso, p3, 3/1 RPC, p4 (23 sts).
• Row 16: P5, 3/1 LPC, p5, 3/1 RPC, p5.
• Row 17: K6, p3, k5, p3, k6.
• Row 18: P6, 3/1 LPC, p3, 3/1 RPC, p6.
• Row 19: K7, p3, k3, p3, k7.
• Row 20: P7, 3/1 LPC, p1, 3/1 RPC, p7.
• Repeat rows 1-20.