Shown with a cast-on count of 1 stitch.  

• Round 1: 1-To-4 inc (4 sts).
• Round 2: [Ctr dbl inc] 4 times (12 sts).
• Round 3: Knit.
• Round 4: Kfb, p1, kfb, kfb, k1, kfb, kfb, p1, kfb, kfb, k1, kfb (20 sts).
• Round 5: K2, p1, k2, k5, k2, p1, k2, k5.
• Round 6: K2, (p1, k1, p1) in next st, k2, kfb, k3, kfb, k2, (p1, k1, p1) in next st, k2, kfb, k3, kfb (28 sts).
• Round 7: K2, p3, k2, k2, k3, k2, k2, p3, k2, k2, k3, k2.
• Round 8: K2, p1, (p1, k1, p1) in next st, p1, k2, kfb, k5, kfb, k2, p1, (p1, k1, p1) in next st, p1, k2, kfb, k5, kfb (36 sts).
• Round 9: K2, p5, k2, k2, k5, k2, k2, p5, k2, k2, k5, k2.
• Round 10: K2, p2, (k1, p1, k1) in next st, p2, k2, kfb, k7, kfb, k2, p2, (k1, p1, k1) in next st, p2, k2, kfb, k7, kfb (44 sts).
• Round 11: K2, p2, k1, (k1, p1, k1) in next st, k1, p2, k2, k2, k7, k2, k2, p2, k1, (k1, p1, k1) in next st, k1, p2, k2, k2, k7, k2 (48 sts).