Shown with a cast-on count of 0 stitches.  

• Row 1 (RS): CO 20 sts (20 sts).
• Rows 2-10 (RS): [K1 tbl, p1 tbl] 10 times.
• Row 11 (RS): K1, brSl, k1, brSl, k1, brSl, k3tog, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl (18 sts).
• Rows 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, and 50 (RS): *BrSl, p1, repeat from *.
• Rows 13, 17, 21, 25, 29, 33, and 35 (RS): *K1, brSl, repeat from *.
• Row 15 (RS): K1, brSl, k1, brSl, k3tog, brSl, (k1, yo, k1) in next st, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl.
• Row 19 (RS): K1, brSl, k1, brSl, k1, brSl, (k1, yo, k1) in next st, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl (20 sts).
• Row 23 (RS): K1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k3tog, brSl, k1, brSl (18 sts).
• Row 27 (RS): K1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k3tog, brSl, (k1, yo, k1) in next st, brSl.
• Row 31 (RS): K1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, k1, brSl, (k1, yo, k1) in next st, brSl, k1, brSl (20 sts).
• Row 37 (RS): K1, brSl, k3tog, brSl, *k1, brSl, repeat from * (18 sts).
• Row 39 (RS): K3tog, brSl, *k1, brSl, repeat from * (16 sts).
• Row 41 (RS): K3tog, brSl, *k1, brSl, repeat from * (14 sts).
• Row 43 (RS): K1, brSl, k1, brSl, k3tog, brSl, *k1, brSl, repeat from * (12 sts).
• Row 45 (RS): K1, brSl, k3tog, brSl, *k1, brSl, repeat from * (10 sts).
• Row 47 (RS): K1, brSl, k1, brSl, k1, brSl, k3tog, brSl (8 sts).
• Row 49 (RS): K1, brSl, k1, brSl, k3tog, brSl (6 sts).