Shown with a cast-on count of 13 stitches.  

• Rows 1 and 3 (RS): *P1, k1, p1, k2, repeat from * to last 3 sts, p1, k1, p1.
• Rows 2 and 4: K1, sl1 wyif, k1, *p2, k1, sl1 wyif, k1, repeat from *.
• Row 5: *P1, k1, p1, yo, k2tog, repeat from * to last 3 sts, p1, k1, p1.
• Rows 6 and 12: K1, p1, k1, *p2, k1, p1, k1, repeat from *.
• Rows 7 and 9: P1, sl1 wyib, p1, *k2, p1, sl1 wyib, p1, repeat from *.
• Rows 8 and 10: *K1, p1, k1, p2, repeat from * to last 3 sts, k1, p1, k1.
• Row 11: *P1, k1, p1, ssk, yo, repeat from * to last 3 sts, p1, k1, p1.