Shown with a cast-on count of 0 stitches.  

• Round 1: CO 60 sts (60 sts).
• Rounds 2-4 and 39-41: Purl.
• Rounds 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, and 38: *K1, p1, repeat from *.
• Round 9: *[K1, p1] 5 times, (k1, yo, k1) in next st, p1, [k1, p1] 4 times, repeat from * (66 sts).
• Round 11: *[K1, p1] 5 times, (k1, yo, k1) in next st, p1, sl1-k2tog-psso, p1, [k1, p1] 3 times, repeat from *.
• Rounds 13, 23, and 33: *[K1, p1] 4 times, (k1, yo, k1) in next st, p1, k1, p1, (k1, yo, k1) in next st, p1, sl1-k2tog-psso, p1, [k1, p1] twice, repeat from * (72 sts).
• Rounds 15, 25, and 35: *[K1, p1] 3 times, k3tog, p1, (k1, yo, k1) in next st, p1, k1, p1, (k1, yo, k1) in next st, p1, k1, p1, sl1-k2tog-psso, p1, k1, p1, repeat from *.
• Rounds 17, 27, and 37: *[K1, p1] twice, k3tog, p1, (k1, yo, k1) in next st, p1, [k1, p1] 5 times, sl1-k2tog-psso, p1, repeat from * (66 sts).
• Rounds 19 and 29: *K1, p1, k3tog, p1, k1, p1, (k1, yo, k1) in next st, p1, k1, p1, (k1, yo, k1) in next st, p1, [k1, p1] 4 times, repeat from * (72 sts).
• Rounds 21 and 31: *K3tog, p1, [k1, p1] 4 times, (k1, yo, k1) in next st, p1, sl1-k2tog-psso, p1, [k1, p1] 3 times, repeat from * (66 sts).