Shown with a cast-on count of 43 stitches.  

• Row 1 (RS): K1, [yo, k2tog] 3 times, yo, *k1, [yo, ssk] 3 times, yo, k1, [yo, k2tog] 3 times, yo, repeat from * to last 8 sts, k1, [yo, ssk] 3 times, yo, k1 (multiple of 16 sts, plus 17).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, and 52: Purl.
• Rows 3 and 47: K1, [k2tog, yo] 3 times, k1, *k2, [yo, ssk] 3 times, k1, [k2tog, yo] 3 times, k1, repeat from * to last 9 sts, k2, [yo, ssk] 3 times, k1.
• Rows 5 and 51: [K2tog, yo] 3 times, k2, *k3, [yo, ssk] twice, yo, k3tog, [yo, k2tog] twice, yo, k2, repeat from * to last 9 sts, k3, [yo, ssk] 3 times.
• Row 7: K1, [k2tog, yo] twice, k3, *k4, [yo, ssk] twice, k1, [k2tog, yo] twice, k3, repeat from * to last 9 sts, k4, [yo, ssk] twice, k1.
• Row 9: [K2tog, yo] twice, k1, yo, k2, *k3tog, k2, yo, k1, yo, ssk, yo, k3tog, yo, k2tog, yo, k1, yo, k2, repeat from * to last 10 sts, k3tog, k2, yo, k1, [yo, ssk] twice.
• Row 11: K1, k2tog, yo, k3, yo, k1, *k3tog, k1, yo, k3, yo, ssk, k1, k2tog, yo, k3, yo, k1, repeat from * to last 10 sts, k3tog, k1, yo, k3, yo, ssk, k1.
• Rows 13 and 37: K2tog, yo, k5, yo, *[k3tog, yo, k5, yo] twice, repeat from * to last 10 sts, k3tog, yo, k5, yo, ssk.
• Rows 15 and 39: K2, yo, k1, k3tog, k1, yo, k1, *k2, yo, k1, k3tog, k1, yo, k3, yo, k1, k3tog, k1, yo, k1, repeat from * to last 9 sts, k2, yo, k1, k3tog, k1, yo, k2.
• Row 17: K1, yo, ssk, yo, sl1-k2tog-psso, yo, k2, *k3, yo, k3tog, yo, k2tog, yo, k1, yo, ssk, yo, sl1-k2tog-psso, yo, k2, repeat from * to last 9 sts, k3, yo, k3tog, yo, k2tog, yo, k1.
• Row 19: K2, [yo, ssk] twice, yo, k1, *k3tog, k1, [yo, k2tog] twice, yo, k3, [yo, ssk] twice, yo, k1, repeat from * to last 10 sts, k3tog, k1, [yo, k2tog] twice, yo, k2.
• Rows 21 and 25: K1, [yo, ssk] 3 times, yo, *k3tog, [yo, k2tog] 3 times, yo, k1, [yo, ssk] 3 times, yo, repeat from * to last 10 sts, k3tog, [yo, k2tog] 3 times, yo, k1.
• Rows 23 and 27: K2, [yo, ssk] 3 times, *k1, [k2tog, yo] 3 times, k3, [yo, ssk] 3 times, repeat from * to last 9 sts, k1, [k2tog, yo] 3 times, k2.
• Row 29: K3, [yo, ssk] twice, yo, *k3tog, [yo, k2tog] twice, yo, k5, [yo, ssk] twice, yo, repeat from * to last 10 sts, k3tog, [yo, k2tog] twice, yo, k3.
• Row 31: K4, [yo, ssk] twice, *k1, [k2tog, yo] twice, k7, [yo, ssk] twice, repeat from * to last 9 sts, k1, [k2tog, yo] twice, k4.
• Row 33: K2, k2tog, yo, k1, yo, ssk, yo, *k3tog, yo, k2tog, yo, k1, yo, k2, k3tog, k2, yo, k1, yo, ssk, yo, repeat from * to last 10 sts, k3tog, yo, k2tog, yo, k1, yo, ssk, k2.
• Row 35: K1, k2tog, yo, k3, yo, ssk, *k1, k2tog, yo, k3, yo, k1, k3tog, k1, yo, k3, yo, ssk, repeat from * to last 9 sts, k1, k2tog, yo, k3, yo, ssk, k1.
• Row 41: K3, yo, k3tog, yo, k2tog, yo, *k1, yo, ssk, yo, sl1-k2tog-psso, yo, k5, yo, k3tog, yo, k2tog, yo, repeat from * to last 9 sts, k1, yo, ssk, yo, sl1-k2tog-psso, yo, k3.
• Row 43: K1, [k2tog, yo] 3 times, k1, *k2, [yo, ssk] twice, yo, k1, k3tog, k1, [yo, k2tog] twice, yo, k1, repeat from * to last 9 sts, k2, [yo, ssk] 3 times, k1.
• Rows 45 and 49: [K2tog, yo] 4 times, *k1, [yo, ssk] 3 times, yo, k3tog, [yo, k2tog] 3 times, yo, repeat from * to last 9 sts, k1, [yo, ssk] 4 times.