Shown with a cast-on count of 48 stitches.  

• Row 1 (RS): K4, [ssk, yo] twice, *[yo, k2tog] twice, k8, [ssk, yo] twice, repeat from * to last 8 sts, [yo, k2tog] twice, k4.
• Rows 2 and 8: P7, k1, *p15, k1, repeat from * to last 8 sts, p8.
• Row 3: Yo, k2tog, k3tog, [yo] twice, k1, ssk, yo, *yo, k2tog, k1, [yo] twice, sl1-k2tog-psso, ssk, [yo] twice, k2tog, k3tog, [yo] twice, k1, ssk, yo, repeat from * to last 8 sts, yo, k2tog, k1, [yo] twice, sl1-k2tog-psso, ssk, yo.
• Rows 4 and 12: [P3, k1] twice, *[p3, k1] 4 times, repeat from * to last 8 sts, p3, k1, p4.
• Row 5: K1, sl2-k1-p2sso, [yo] twice, k3tog, [yo] twice, k1, *k1, [yo] twice, sl1-k2tog-psso, [yo] twice, sl2-k1-p2sso, k2, sl2-k1-p2sso, [yo] twice, k3tog, [yo] twice, k1, repeat from * to last 8 sts, k1, [yo] twice, sl1-k2tog-psso, [yo] twice, sl2-k1-p2sso, k1.
• Row 6: [P2, k1] twice, p2, *p1, k1, p2, k1, p5, [k1, p2] twice, repeat from * to last 8 sts, p1, k1, p2, k1, p3.
• Row 7: [K1, ssk] twice, yo, k2, yo, *yo, k2, yo, k2tog, k1, k2tog, k2, ssk, k1, ssk, yo, k2, yo, repeat from * to last 8 sts, yo, k2, yo, [k2tog, k1] twice.
• Row 9: [Yo, k2tog] twice, k4, *k4, ssk, yo, ssk, [yo] twice, k2tog, yo, k2tog, k4, repeat from * to last 8 sts, k4, [ssk, yo] twice.
• Rows 10 and 16: P8, *p7, k1, p8, repeat from * to last 8 sts, p8.
• Row 11: Yo, k2tog, k1, [yo] twice, sl1-k2tog-psso, ssk, yo, *yo, k2tog, k3tog, [yo] twice, k1, ssk, [yo] twice, k2tog, k1, [yo] twice, sl1-k2tog-psso, ssk, yo, repeat from * to last 8 sts, yo, k2tog, k3tog, [yo] twice, k1, ssk, yo.
• Row 13: K1, [yo] twice, sl1-k2tog-psso, [yo] twice, sl2-k1-p2sso, k1, *k1, sl2-k1-p2sso, [yo] twice, k3tog, [yo] twice, k2, [yo] twice, sl1-k2tog-psso, [yo] twice, sl2-k1-p2sso, k1, repeat from * to last 8 sts, k1, sl2-k1-p2sso, [yo] twice, k3tog, [yo] twice, k1.
• Row 14: P1, k1, p2, k1, p3, *p2, [k1, p2, k1, p3] twice, repeat from * to last 8 sts, [p2, k1] twice, p2.
• Row 15: Yo, k2, yo, [k2tog, k1] twice, *[k1, ssk] twice, yo, k2, [yo] twice, k2, yo, [k2tog, k1] twice, repeat from * to last 8 sts, [k1, ssk] twice, yo, k2, yo.