Shown with a cast-on count of 32 stitches.  

• Rounds 7-8 and 50: K32.
• Round 9: K16, incL, incR, k16 (34 sts).
• Rounds 10 and 48: K34.
• Round 11: K16, M1L, k2, M1R, k16 (36 sts).
• Rounds 12 and 46: K36.
• Round 13: K16, M1L, k4, M1R, k16 (38 sts).
• Rounds 14 and 44: K38.
• Round 15: K16, M1L, k6, M1R, k16 (40 sts).
• Rounds 16 and 42: K40.
• Round 17: K16, M1L, k8, M1R, k16 (42 sts).
• Rounds 18 and 40: K42.
• Round 19: K16, M1L, k10, M1R, k16 (44 sts).
• Rounds 20 and 38: K44.
• Round 21: K16, M1L, k12, M1R, k16 (46 sts).
• Rounds 22 and 36: K46.
• Round 23: K16, M1L, k14, M1R, k16 (48 sts).
• Rounds 24 and 34: K48.
• Round 25: K16, M1L, k16, M1R, k16 (50 sts).
• Rounds 26 and 32: K50.
• Round 27: K16, M1L, k18, M1R, k16 (52 sts).
• Rounds 28-30: K52.
• Round 31: K8, k3tog, k2, incL, incR, k2, ssk, k18, k2tog, k2, incL, incR, k2, sl1-k2tog-psso, k8 (50 sts).
• Round 33: K6, k3tog, k2, M1L, k2, M1R, k2, ssk, k16, k2tog, k2, M1L, k2, M1R, k2, sl1-k2tog-psso, k6 (48 sts).
• Round 35: K4, k3tog, k2, M1L, k4, M1R, k2, ssk, k14, k2tog, k2, M1L, k4, M1R, k2, sl1-k2tog-psso, k4 (46 sts).
• Round 37: K2, k3tog, k2, M1L, k6, M1R, k2, ssk, k12, k2tog, k2, M1L, k6, M1R, k2, sl1-k2tog-psso, k2 (44 sts).
• Round 39: K3tog, k2, M1L, k8, M1R, k2, ssk, k10, k2tog, k2, M1L, k8, M1R, k2, sl1-k2tog-psso (42 sts).
• Round 41: K8, k3tog, k2, incL, incR, k2, ssk, k8, k2tog, k2, incL, incR, k2, sl1-k2tog-psso, k8 (40 sts).
• Round 43: K6, k3tog, k2, M1L, k2, M1R, k2, ssk, k6, k2tog, k2, M1L, k2, M1R, k2, sl1-k2tog-psso, k6 (38 sts).
• Round 45: K4, k3tog, k2, M1L, k4, M1R, k2, ssk, k4, k2tog, k2, M1L, k4, M1R, k2, sl1-k2tog-psso, k4 (36 sts).
• Round 47: K2, k3tog, k2, M1L, k6, M1R, k2, ssk, k2, k2tog, k2, M1L, k6, M1R, k2, sl1-k2tog-psso, k2 (34 sts).
• Round 49: K3tog, k2, M1L, k8, M1R, k2, ssk, k2tog, k2, M1L, k8, M1R, k2, sl1-k2tog-psso (32 sts).