Shown with a cast-on count of 55 stitches.  

• Row 1 (RS): K1, yo, k2tog, k3, k2tog, yo, k2, *k1, yo, ssk, k3, ssk, yo, k1, yo, k2tog, k3, k2tog, yo, k2, repeat from * to last 9 sts, k1, yo, ssk, k3, ssk, yo, k1.
• Rows 2, 8, 10, and 16: Purl.
• Row 3: K1, k2tog, [yo] twice, ssk, k2, yo, k2tog, k1, *ssk, yo, k2, k2tog, [yo] twice, ssk, k1, k2tog, [yo] twice, ssk, k2, yo, k2tog, k1, repeat from * to last 9 sts, ssk, yo, k2, k2tog, [yo] twice, ssk, k1.
• Row 4: P2, k1, p6, *p6, k1, p4, k1, p6, repeat from * to last 10 sts, p6, k1, p3.
• Row 5: K2tog, [yo] twice, k2, sl2-k1-p2sso, yo, k3, *k2, yo, sl2-k1-p2sso, k2, [yo] twice, sl2-k1-p2sso, [yo] twice, k2, sl2-k1-p2sso, yo, k3, repeat from * to last 9 sts, k2, yo, sl2-k1-p2sso, k2, [yo] twice, ssk.
• Row 6: P1, k1, p7, *p7, k1, p2, k1, p7, repeat from * to last 10 sts, p7, k1, p2.
• Row 7: Ssk, k3, yo, k1, yo, k2tog, k2, *k1, ssk, yo, k1, yo, k3, sl2-k1-p2sso, k3, yo, k1, yo, k2tog, k2, repeat from * to last 9 sts, k1, ssk, yo, k1, yo, k3, k2tog.
• Row 9: K2, yo, ssk, k3, ssk, yo, k1, *yo, k2tog, k3, k2tog, yo, k3, yo, ssk, k3, ssk, yo, k1, repeat from * to last 9 sts, yo, k2tog, k3, k2tog, yo, k2.
• Row 11: K1, ssk, yo, k2, k2tog, [yo] twice, ssk, k1, *k2tog, [yo] twice, ssk, k2, yo, k2tog, k1, ssk, yo, k2, k2tog, [yo] twice, ssk, k1, repeat from * to last 9 sts, k2tog, [yo] twice, ssk, k2, yo, k2tog, k1.
• Row 12: P6, k1, p2, *p2, k1, p12, k1, p2, repeat from * to last 10 sts, p2, k1, p7.
• Row 13: K3, yo, sl2-k1-p2sso, k2, [yo] twice, sl2-k1-p2sso, *[yo] twice, k2, sl2-k1-p2sso, yo, k5, yo, sl2-k1-p2sso, k2, [yo] twice, sl2-k1-p2sso, repeat from * to last 8 sts, [yo] twice, k2, sl2-k1-p2sso, yo, k3.
• Row 14: P7, k1, p1, *p1, k1, p14, k1, p1, repeat from * to last 10 sts, p1, k1, p8.
• Row 15: K2, ssk, yo, k1, yo, k3, sl2-k1-p2sso, *k3, yo, k1, yo, k2tog, k3, ssk, yo, k1, yo, k3, sl2-k1-p2sso, repeat from * to last 8 sts, k3, yo, k1, yo, k2tog, k2.