Shown with a cast-on count of 37 stitches.  

• Row 1 (RS): K2, *[k2tog, yo] twice, k1, [yo, ssk] twice, k3, repeat from * to last 11 sts, [k2tog, yo] twice, k1, [yo, ssk] twice, k2.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K1, *[k2tog, yo] twice, k3, [yo, ssk] twice, k1, repeat from *.
• Row 5: [K2tog, yo] twice, *k5, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, repeat from * to last 9 sts, k5, [yo, ssk] twice.
• Row 7: K1, *[yo, ssk] twice, k3, [k2tog, yo] twice, k1, repeat from *.
• Row 9: K2, *[yo, ssk] twice, k1, [k2tog, yo] twice, k3, repeat from * to last 11 sts, [yo, ssk] twice, k1, [k2tog, yo] twice, k2.
• Row 11: K3, *yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k5, repeat from * to last 10 sts, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k3.
• Repeat rows 1-12.