Shown with a cast-on count of 12 stitches.  

• Rounds 1-4, 6-7, 9-12, 14-15, 17-20, 22-23, 25-28, 30-31, 33-36, 38-39, 41, and 43: Knit.
• Round 5: K1, [k2, yo] twice, k2, [yo, k2] twice, k1 (16 sts).
• Rounds 8, 16, 24, 32, 40, 42, and 44: Purl.
• Round 13: K1, [k2, yo] 3 times, k2, [yo, k2] 3 times, k1 (22 sts).
• Round 21: [K2, yo] 5 times, k2, [yo, k2] 5 times (32 sts).
• Round 29: K1, [k2, yo] 7 times, k2, [yo, k2] 7 times, k1 (46 sts).
• Round 37: K8, [k2, yo] 7 times, k2, [yo, k2] 7 times, k8 (60 sts).