Shown with a cast-on count of 45 stitches.  

• Rows 1 and 3 (RS): BrSl, k4, brSl, [p1, k1] 16 times, p1, brSl, k5.
• Rows 2 and 4: BrSl, k4, [p1, k1] 17 times, p1, k4, p1.
• Row 5: BrSl, k2tog, yo wrapping yarn twice, ssk, brSl, [p1, k1] 16 times, p1, brSl, k5 (44 sts).
• Row 6: BrSl, k4, purl to last 4 sts, k1, kfb, k1, p1 (45 sts).
• Row 7: BrSl, k4, brSl, k4, M1R, k1, M1L, k4, M1R, k1, M1L, k12, M1R, k1, M1L, k4, M1R, k1, M1L, k5, brSl, k5 (53 sts).
• Row 8: BrSl, k4, purl to last 5 sts, k4, p1.
• Row 9: BrSl, k4, brSl, k5, M1R, k1, M1L, k6, M1R, k1, M1L, k14, M1R, k1, M1L, k6, M1R, k1, M1L, k1, turn (50 sts).
• Row 10: P40, turn (40 sts).
• Row 11: K43, turn (43 sts).
• Row 12: P45, turn (45 sts).