Shown with a cast-on count of 43 stitches.  

• Row 1 (RS): [K2tog, yo] twice, k7, *yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k7, repeat from * to last 4 sts, [yo, ssk] twice.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: Yo, k3tog, yo, k1, yo, k2, sl1-k2tog-psso, k2, *yo, k1, yo, ssk, yo, k3tog, yo, k1, yo, k2, sl1-k2tog-psso, k2, repeat from * to last 4 sts, yo, k1, yo, sl1-k2tog-psso, yo.
• Row 5: K2tog, yo, k1, yo, ssk, yo, k1, sl1-k2tog-psso, k1, *yo, k2tog, yo, k1, yo, sl1-k2tog-psso, yo, k1, yo, ssk, yo, k1, sl1-k2tog-psso, k1, repeat from * to last 5 sts, yo, k2tog, yo, k1, yo, ssk.
• Row 7: K1, *k3, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k4, repeat from *.
• Row 9: K2tog, k2, *yo, k1, yo, ssk, yo, sl1-k2tog-psso, yo, k1, yo, k2, sl1-k2tog-psso, k2, repeat from * to last 11 sts, yo, k1, yo, ssk, yo, sl1-k2tog-psso, yo, k1, yo, k2, ssk.
• Row 11: K2tog, k1, *yo, k2tog, yo, k1, yo, sl1-k2tog-psso, yo, k1, yo, ssk, yo, k1, sl1-k2tog-psso, k1, repeat from * to last 12 sts, yo, k2tog, yo, k1, yo, sl1-k2tog-psso, yo, k1, yo, ssk, yo, k1, ssk.