Shown with a cast-on count of 18 stitches.  

• Row 1 (RS): K18.
• Row 2: K18.
• Row 3: K17, turn (17 sts).
• Row 4: K17.
• Row 5: K16, turn (16 sts).
• Row 6: K16.
• Row 7: K15, turn (15 sts).
• Row 8: K15.
• Row 9: K14, turn (14 sts).
• Row 10: K14.
• Row 11: K13, turn (13 sts).
• Row 12: K13.
• Row 13: K13, M1L, turn (14 sts).
• Row 14: Sl1 wyif, k13.
• Row 15: K12, M1L, turn (13 sts).
• Row 16: Sl1 wyif, k12.
• Row 17: K11, M1L, turn (12 sts).
• Row 18: Sl1 wyif, k11.
• Row 19: K10, M1L, turn (11 sts).
• Row 20: Sl1 wyif, k10.
• Row 21: K9, M1L, turn (10 sts).
• Row 22: Sl1 wyif, k9.
• Row 23: K8, M1L, turn (9 sts).
• Row 24: Sl1 wyif, k8.
• Row 25: K7, M1L, turn (8 sts).
• Row 26: Sl1 wyif, k7.
• Row 27: K6, M1L, turn (7 sts).
• Row 28: Sl1 wyif, k6.
• Row 29: K5, M1L, turn (6 sts).
• Row 30: Sl1 wyif, k5.
• Row 31: K4, M1L, turn (5 sts).
• Row 32: Sl1 wyif, k4.
• Row 33: K4, turn (4 sts).
• Row 34: K4.
• Row 35: K3, turn (3 sts).
• Row 36: K3.
• Row 37: K2, turn (2 sts).
• Row 38: K2.
• Row 39: K3, [k2tog] 10 times, k5 (18 sts).
• Repeat rows 2-39.