Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): K1, k2tog, yo, *k1, yo, ssk, k1, k2tog, yo, repeat from * to last 4 sts, k1, yo, ssk, k1.
• Rows 2, 4, 6, and 8: Purl.
• Row 3: K2tog, k1, yo, *k1, yo, k1, sl2-k1-p2sso, k1, yo, repeat from * to last 4 sts, k1, yo, k1, ssk.
• Row 5: *K1, yo, ssk, k1, k2tog, yo, repeat from * to last st, k1.
• Row 7: *K1, yo, k1, sl2-k1-p2sso, k1, yo, repeat from * to last st, k1.