Shown with a cast-on count of 4 stitches.  

• Row 1 (WS): P4.
• Row 2: IncL, k4, incR (6 sts).
• Row 3: P6.
• Row 4: IncL, k6, incR (8 sts).
• Row 5: P8.
• Row 6: IncL, k8, incR (10 sts).
• Row 7: P10.
• Row 8: IncL, k1, 2/2 LC, 2/2 RC, k1, incR (12 sts).
• Round 9: K2, kfb, k2, kfb, kfb, k2, kfb, k2 (16 sts).
• Round 10: IncL, k16, incR (18 sts).
• Round 11: K18.
• Round 12: IncL, k18, incR (20 sts).
• Round 13: K20.
• Round 14: IncL, k1, 3/3 RC, k6, 3/3 LC, k1, incR (22 sts).
• Round 15: K22.
• Round 16: IncL, k22, incR (24 sts).
• Round 17: K24.
• Round 18: IncL, k24, incR (26 sts).
• Round 19: K26.
• Round 20: IncL, k5, 4/4 LC, 4/4 RC, k5, incR (28 sts).
• Round 21: K28.
• Round 22: IncL, k1, p1, k24, p1, k1, incR (30 sts).
• Round 23: K2, p1, k24, p1, k2.
• Round 24: IncL, k1, p2, k24, p2, k1, incR (32 sts).
• Round 25: K2, p2, k24, p2, k2.
• Round 26: IncL, k1, p3, 4/4 RC, k8, 4/4 LC, p3, k1, incR (34 sts).
• Round 27: K2, p3, k24, p3, k2.
• Round 28: IncL, k2, p3, k24, p3, k2, incR (36 sts).
• Rounds 29-31: K3, p3, k24, p3, k3.
• Round 32: IncL, k3, p3, k4, 4/4 LC, 4/4 RC, k4, p3, k3, incR (38 sts).
• Rounds 33-35: K4, p3, k24, p3, k4.
• Round 36: IncL, k4, p3, k24, p3, k4, incR (40 sts).
• Rounds 37 and 39: K5, p3, k24, p3, k5.
• Round 38: K5, p3, 4/4 RC, k8, 4/4 LC, p3, k5.
• Round 40: IncL, k5, p3, k24, p3, k5, incR (42 sts).
• Rounds 41-43: K6, p3, k24, p3, k6.
• Round 44: IncL, k6, p3, k4, 4/4 LC, 4/4 RC, k4, p3, k6, incR (44 sts).
• Rounds 45-48: K7, p3, k24, p3, k7.