Shown with a cast-on count of 35 stitches.  

• Round 1: Yo, k35, yo (37 sts).
• Rounds 2, 4, 6, 8, and 10: Knit.
• Round 3: Yo, k37, yo (39 sts).
• Round 5: Yo, k39, yo (41 sts).
• Round 7: Yo, k41, yo (43 sts).
• Round 9: Yo, k43, yo (45 sts).
• Round 11: Yo, k45, yo (47 sts).
• Round 12: K1, M1R, k1, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2, M1L, k1 (49 sts).
• Round 13: K1, M1R, k1, k1, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, knit to last st, M1L, k1 (51 sts).
• Round 14: K1, M1R, k1, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, M1L, k1 (53 sts).
• Round 15: K1, M1R, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, k2, M1L, k2, k2tog, knit to last st, M1L, k1 (55 sts).