Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): *K1, yo, ssk, k1, k2tog, yo, repeat from * to last st, k1.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Rows 3 and 9: *K2, yo, k3, yo, k1, repeat from * to last st, k1 (multiple of 8 sts, plus 1).
• Row 5: K2tog, *yo, ssk, k1, k2tog, yo, sl1-k2tog-psso, repeat from * to last 7 sts, yo, ssk, k1, k2tog, yo, ssk (multiple of 6 sts, plus 7).
• Row 7: *K1, k2tog, yo, k1, yo, ssk, repeat from * to last st, k1.
• Row 11: *K1, k2tog, yo, sl1-k2tog-psso, yo, ssk, repeat from * to last st, k1 (multiple of 6 sts, plus 1).