Shown with a cast-on count of 44 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19 (RS): *K1, p1, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: *P1, k1, repeat from *.
• Row 21: M1L, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, M1L, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, k1, p1, M1L, k1, p1, k1, p1, k1, p1, M1L, k1, p1, k1, p1, M1L, k1, p1, k1, p1, k1, p1, k1, p1, M1L (50 sts).