Shown with a cast-on count of 21 stitches.  

• Row 1 (RS): K1, *yo, ssk, p1, yo, p3tog, yo, p1, k2tog, yo, k1, repeat from *.
• Row 2: *P3, k1, p3, k1, p2, repeat from * to last st, p1.
• Row 3: K1, *k1, yo, ssk, yo, p3tog, yo, k2tog, yo, k2, repeat from *.
• Rows 4, 6, and 8: *P2, k2, p3, k2, p1, repeat from * to last st, p1.
• Rows 5 and 7: K1, *k1, p2, yo, p3tog, yo, p2, k2, repeat from *.