Shown with a cast-on count of 40 stitches.  

• Rows 1 and 13 (WS): K19, 1/1 RC, k19.
• Row 2: P18, 1/1 RPC, 1/1 LPC, p18.
• Row 3: K17, 1/1 LPC, k2, 1/1 RPC, k17.
• Row 4: P16, 1/1 RPC, p4, 1/1 LPC, p16.
• Row 5: K15, 1/1 LPC, k6, 1/1 RPC, k15.
• Rows 6 and 8: P15, k1, p8, k1, p15.
• Row 7: K15, p1, k8, p1, k15.
• Row 9: K15, 1/1 RPC, k6, 1/1 LPC, k15.
• Row 10: P16, 1/1 LPC, p4, 1/1 RPC, p16.
• Row 11: K17, 1/1 RPC, k2, 1/1 LPC, k17.
• Row 12: P18, 1/1 LPC, 1/1 RPC, p18.
• Rows 14, 26, and 50: P19, k2, p19.
• Row 15: K18, 1/1 LPC, 1/1 RPC, k18.
• Row 16: P17, 1/1 RPC, k2, 1/1 LPC, p17.
• Row 17: K16, 1/1 LPC, k1, p2, k1, 1/1 RPC, k16.
• Row 18: P15, 1/1 RPC, p2, k2, p2, 1/1 LPC, p15.
• Row 19: K14, 1/1 LPC, k3, p2, k3, 1/1 RPC, k14.
• Row 20: P13, 1/1 RPC, p4, k2, p4, 1/1 LPC, p13.
• Row 21: K12, 1/1 LPC, k5, p2, k5, 1/1 RPC, k12.
• Row 22: P11, 1/1 RPC, p6, k2, p6, 1/1 LPC, p11.
• Row 23: K10, 1/1 LPC, k7, p2, k7, 1/1 RPC, k10.
• Row 24: P10, k1, p8, k2, p8, k1, p10.
• Row 25: K10, p1, k8, p2, k8, p1, k10.
• Row 27: K3, p1, k15, p2, k15, p1, k3.
• Row 28: P2, M1L, sl1-k2tog-psso, M1L, p14, k2, p14, M1L, sl1-k2tog-psso, M1L, p2.
• Row 29: K2, p3, k14, p2, k14, p3, k2.
• Row 30: P1, 1/1 RPC, k1, 1/1 LPC, p13, k2, p13, 1/1 RPC, k1, 1/1 LPC, p1.
• Row 31: [K1, p1] 3 times, k13, p2, k13, [p1, k1] 3 times.
• Row 32: 1/1 RPC, p1, k1, p1, 1/1 LPC, p12, k2, p12, 1/1 RPC, p1, k1, p1, 1/1 LPC.
• Row 33: [P1, k2] twice, p1, k12, p2, k12, p1, k2, p1, k2, p1.
• Row 34: P3, 1/1 LPC, p14, k2, p14, 1/1 RPC, p3.
• Row 35: K4, 1/1 RPC, k13, p2, k13, 1/1 LPC, k4.
• Row 36: P5, 1/1 LPC, p12, k2, p12, 1/1 RPC, p5.
• Row 37: K6, 1/1 RPC, k11, p2, k11, 1/1 LPC, k6.
• Row 38: P7, 1/1 LPC, p10, k2, p10, 1/1 RPC, p7.
• Row 39: K8, 1/1 RPC, k9, p2, k9, 1/1 LPC, k8.
• Row 40: P9, 1/1 LPC, p8, k2, p8, 1/1 RPC, p9.
• Row 41: K10, 1/1 RPC, k7, p2, k7, 1/1 LPC, k10.
• Row 42: P11, 1/1 LPC, p6, k2, p6, 1/1 RPC, p11.
• Row 43: K12, 1/1 RPC, k5, p2, k5, 1/1 LPC, k12.
• Row 44: P13, 1/1 LPC, p4, k2, p4, 1/1 RPC, p13.
• Row 45: K14, 1/1 RPC, k3, p2, k3, 1/1 LPC, k14.
• Row 46: P15, 1/1 LPC, p2, k2, p2, 1/1 RPC, p15.
• Row 47: K16, 1/1 RPC, k1, p2, k1, 1/1 LPC, k16.
• Row 48: P17, 1/1 LPC, k2, 1/1 RPC, p17.
• Row 49: K19, p2, k19.