Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): Knit.
• Row 2: Purl.
• Rows 3 and 19: K4, *p1, k7, repeat from * to last 5 sts, p1, k4.
• Rows 4 and 20: P4, *k1, p7, repeat from * to last 5 sts, k1, p4.
• Rows 5 and 17: K3, *p3, k5, repeat from * to last 6 sts, p3, k3.
• Rows 6 and 18: P3, *k3, p5, repeat from * to last 6 sts, k3, p3.
• Rows 7 and 15: K2, *p5, k3, repeat from * to last 7 sts, p5, k2.
• Rows 8 and 16: P2, *k5, p3, repeat from * to last 7 sts, k5, p2.
• Rows 9 and 13: K1, *p7, k1, repeat from *.
• Rows 10 and 14: P1, *k7, p1, repeat from *.
• Row 11: Purl.
• Row 12: Knit.
• Repeat rows 1-20.