Shown with a cast-on count of 37 stitches.  

• Row 1 (RS): K2tog, k2, yo, ssk, yo, k1, yo, k2tog, yo, k2, *sl1-k2tog-psso, k2, yo, ssk, yo, k1, yo, k2tog, yo, k2, repeat from * to last 2 sts, ssk.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K2tog, k1, yo, k2tog, yo, k3, yo, ssk, yo, k1, *sl1-k2tog-psso, k1, yo, k2tog, yo, k3, yo, ssk, yo, k1, repeat from * to last 2 sts, ssk.
• Row 5: [K2tog, yo] twice, k5, yo, ssk, yo, *sl1-k2tog-psso, yo, k2tog, yo, k5, yo, ssk, yo, repeat from * to last 2 sts, ssk.
• Row 7: K1, *yo, k2tog, yo, k2, sl1-k2tog-psso, k2, yo, ssk, yo, k1, repeat from *.
• Row 9: K1, *k1, yo, ssk, yo, k1, sl1-k2tog-psso, k1, yo, k2tog, yo, k2, repeat from *.
• Row 11: K1, *k2, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k3, repeat from *.