Shown with a cast-on count of 45 stitches.  

• Rows 1 and 3 (RS): K1, [k2tog, yo] twice, *[k2tog] twice, k2, k2tog, [yo, k1] 5 times, yo, k2tog, k16, [k2tog] twice, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, and 44: Purl.
• Row 5: K1, [k2tog, yo] twice, *k2tog, k4, k2tog, [yo, k1] 5 times, yo, k2tog, k14, [k2tog] 3 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 7: K1, [k2tog, yo] twice, *k2tog, k5, k2tog, [yo, k1] 5 times, yo, k2tog, k13, [k2tog] 3 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 9: K1, [k2tog, yo] twice, *k8, k2tog, [yo, k1] 5 times, yo, k2tog, k10, [k2tog] 4 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 11: K1, [k2tog, yo] twice, *k10, k2tog, [yo, k1] 5 times, yo, k2tog, k8, [k2tog] 4 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 13: K1, [k2tog, yo] twice, *k12, k2tog, [yo, k1] 5 times, yo, k2tog, k6, [k2tog] 4 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 15: K1, [k2tog, yo] twice, *k14, k2tog, [yo, k1] 5 times, yo, k2tog, k4, [k2tog] 4 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 17: K1, [k2tog, yo] twice, *k16, k2tog, [yo, k1] 5 times, yo, k2tog, k2, [k2tog] 4 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 19: K1, [k2tog, yo] twice, *k2tog, k16, k2tog, [yo, k1] 5 times, yo, k2tog, k2, [k2tog] 3 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 21: K1, [k2tog, yo] twice, *k2tog, k17, k2tog, [yo, k1] 5 times, yo, k2tog, k1, [k2tog] 3 times, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Rows 23 and 25: K1, [k2tog, yo] twice, *[k2tog] twice, k16, k2tog, [yo, k1] 5 times, yo, k2tog, k2, [k2tog] twice, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 27: K1, [k2tog, yo] twice, *[k2tog] 3 times, k14, k2tog, [yo, k1] 5 times, yo, k2tog, k4, k2tog, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 29: K1, [k2tog, yo] twice, *[k2tog] 3 times, k13, k2tog, [yo, k1] 5 times, yo, k2tog, k5, k2tog, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 31: K1, [k2tog, yo] twice, *[k2tog] 4 times, k10, k2tog, [yo, k1] 5 times, yo, k2tog, k8, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 33: K1, [k2tog, yo] twice, *[k2tog] 4 times, k8, k2tog, [yo, k1] 5 times, yo, k2tog, k10, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 35: K1, [k2tog, yo] twice, *[k2tog] 4 times, k6, k2tog, [yo, k1] 5 times, yo, k2tog, k12, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 37: K1, [k2tog, yo] twice, *[k2tog] 4 times, k4, k2tog, [yo, k1] 5 times, yo, k2tog, k14, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 39: K1, [k2tog, yo] twice, *[k2tog] 4 times, k2, k2tog, [yo, k1] 5 times, yo, k2tog, k16, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 41: K1, [k2tog, yo] twice, *[k2tog] 3 times, k2, k2tog, [yo, k1] 5 times, yo, k2tog, k16, k2tog, repeat from * to last 5 sts, [yo, ssk] twice, k1.
• Row 43: K1, [k2tog, yo] twice, *[k2tog] 3 times, k1, k2tog, [yo, k1] 5 times, yo, k2tog, k17, k2tog, repeat from * to last 5 sts, [yo, ssk] twice, k1.