Shown with a cast-on count of 1 stitch.  

• Row 1 (RS): Yo, kfb, yo (4 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: Purl.
• Rows 3, 5, 9, 11, 13, 15, 19, 21, 23, and 25: Knit.
• Row 7: [Yo, k1] 4 times, yo (9 sts).
• Row 17: [Yo, k1] 9 times, yo (19 sts).
• Row 27: [Yo, k2tog] 3 times, [yo, k1] 7 times, [yo, ssk] 3 times, yo (27 sts).
• Rows 30 and 32: Purl.
• Row 31: K27.
• Rounds 33, 35, 37, 39, 41, 43, 45, 47, and 49: Knit.
• Rounds 34 and 42: K3, k2tog, yo, k1, yo, ssk, k2, yo, ssk, k2, k3, k2tog, yo, k1, yo, ssk, k2, yo, ssk, k1.
• Rounds 36 and 44: K2, k2tog, yo, k3, yo, ssk, k2, yo, ssk, k3, k2tog, yo, k3, yo, ssk, k2, yo, ssk.
• Rounds 38 and 46: K1, k2tog, yo, k2, k2tog, yo, k1, ssk, yo, k5, k2tog, yo, k2, k2tog, yo, k1, ssk, yo, k3.
• Rounds 40 and 48: K2tog, yo, k2, k2tog, yo, k3, yo, ssk, k3, k2tog, yo, k2, k2tog, yo, k3, yo, ssk, k2.