Shown with a cast-on count of 19 stitches.  

• Rows 1 and 7 (RS): Knit.
• Rows 2 and 4: *P3, k2, p1, k2, repeat from * to last 3 sts, p3.
• Rows 3 and 5: K3, *[p1, k1] twice, p1, k3, repeat from *.
• Rows 6 and 12: Purl.
• Rows 8 and 10: *K1, p1, k2, p3, k1, repeat from * to last 3 sts, k1, p1, k1.
• Rows 9 and 11: K1, p1, k1, *p1, k3, [p1, k1] twice, repeat from *.
• Repeat rows 1-12.