Shown with a cast-on count of 37 stitches.  

• Row 1 (RS): K2, *yo, ssk, k5, k2tog, yo, k1, repeat from * to last 5 sts, yo, ssk, k3.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: Purl.
• Row 3: K3, *yo, ssk, k3, k2tog, yo, k3, repeat from * to last 4 sts, yo, ssk, k2.
• Row 5: K4, *yo, ssk, k1, k2tog, yo, k5, repeat from * to last 3 sts, yo, ssk, k1.
• Row 7: K5, *yo, sl1-k2tog-psso, yo, k2, yo, ssk, k3, repeat from * to last 2 sts, k2.
• Row 9: K1, *[yo, ssk, k3] twice, repeat from * to last 6 sts, yo, ssk, k4.
• Row 11: K2, *[yo, ssk, k3] twice, repeat from * to last 5 sts, yo, ssk, k3.
• Row 13: K3, *[yo, ssk, k3] twice, repeat from * to last 4 sts, yo, ssk, k2.
• Row 15: K6, *k2tog, yo, k1, yo, ssk, k5, repeat from * to last st, k1.
• Row 17: K5, *k2tog, yo, k3, yo, ssk, k3, repeat from * to last 2 sts, k2.
• Row 19: K1, *yo, ssk, k1, k2tog, yo, k5, repeat from * to last 6 sts, yo, ssk, k1, k2tog, yo, k1.
• Row 21: K2, *yo, k3tog, yo, k3, k2tog, yo, k2, repeat from * to last 5 sts, yo, k3tog, yo, k2.
• Row 23: K2, *[k2tog, yo, k3] twice, repeat from * to last 5 sts, k2tog, yo, k3.
• Row 25: K1, *[k2tog, yo, k3] twice, repeat from * to last 6 sts, k2tog, yo, k4.
• Row 27: K5, *[k2tog, yo, k3] twice, repeat from * to last 12 sts, k2tog, yo, k3, k2tog, yo, k5.
• Repeat rows 1-28.