Shown with a cast-on count of 24 stitches.  

• Row 1 (RS): Yo, p2tog, [yo, k2tog] 11 times.
• Row 2 (RS): Yo, kfb, p1, [k2tog, yo] twice, kfb, p1, [k2tog, yo] 7 times, k2tog (26 sts).
• Row 3 (RS): Yo, k2tog, p2tog, k1, [yo, k2tog] twice, p1, p2tog, [yo, k2tog] 7 times (24 sts).
• Row 4 (RS): Yo, k2tog, yo, kfb, p1, p2tog, yo, k2tog, p1, pfb, [yo, k2tog] 7 times (26 sts).
• Row 5 (RS): [Yo, k2tog] twice, k1, p1, p2tog, k1, p2tog, pfb, k2tog, [yo, k2tog] 6 times (24 sts).
• Row 6 (RS): [Yo, k2tog] twice, yo, k1, p2, yo, k2tog, p1, p2tog, [yo, k2tog] 6 times.
• Row 7 (RS): [Yo, k2tog] 3 times, p1, p2tog, yo, k1, p2, [yo, k2tog] 6 times.
• Row 8 (RS): [Yo, k2tog] twice, yo, k2, p2, k2tog, pfb, p1, k2tog, [yo, k2tog] 5 times.
• Row 9 (RS): [Yo, k2tog] 3 times, k2, p1, k1, p2, p2tog, [yo, k2tog] 5 times (23 sts).
• Row 10 (RS): [Yo, k2tog] twice, yo, p2, k2, p1, k1, p1, pfb, p1, [yo, k2tog] 5 times (25 sts).
• Row 11 (RS): [Yo, k2tog] 3 times, yo, MB, kfb, k2tog, k3tog, kfb, yo, k1, k2tog, [yo, k2tog] 4 times.
• Row 12 (RS): [K2tog, yo] 3 times, MK, k1, sl1 wyif, p2, [MK] twice, p1, [MK] 9 times, p2tog, yo.
• Row 13 (RS): [K2tog, yo] twice, k3tog, yo, MB, k2tog, kfb, ctr dbl inc, k3tog, [yo, k2tog] 5 times, yo.
• Row 14 (RS): [K2tog, yo] twice, p2, k2tog, k1, p1, k1, p1, k2tog, p1, [k2tog, yo] 5 times (23 sts).
• Row 15 (RS): [K2tog, yo] twice, k2tog, k2, p1, k1, p3, [k2tog, yo] 5 times (22 sts).
• Row 16 (RS): [K2tog, yo] twice, k2, p2, k1, p2tog, p1, yo, [k2tog, yo] 5 times.
• Row 17 (RS): [K2tog, yo] twice, k2tog, p2, yo, kfb, p1, p2tog, yo, [k2tog, yo] 5 times (23 sts).
• Row 18 (RS): K2tog, yo, k2tog, k1, p2, yo, k2tog, pfb, p2tog, k1, yo, [k2tog, yo] 5 times.
• Row 19 (RS): K2tog, yo, k2tog, p2, k2tog, p1, p2tog, yo, [k2tog, yo] 6 times (21 sts).
• Row 20 (RS): K2tog, k1, p2, yo, k1, p1, p2tog, yo, [k2tog, yo] 6 times.
• Row 21 (RS): K2tog, p1, yo, k2tog, yo, k1, p2, k1, yo, [k2tog, yo] 6 times (22 sts).
• Row 22 (RS): K1, p1, k2tog, yo, k2tog, p2tog, yo, [k2tog, yo] 7 times (21 sts).
• Row 23 (RS): [K2tog, yo] 3 times, k2tog, k1, yo, [k2tog, yo] 6 times.