Shown with a cast-on count of 3 stitches.  

• Row 1 (RS): K3.
• Rows 2, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, and 50: Purl.
• Row 3: Yo, kfb, yo, k1, yo, kfb, yo (9 sts).
• Rows 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: Knit.
• Rows 5, 7, 11, 13, 15, 19, 21, 23, 25, 27, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, and 51: Knit.
• Row 9: [Yo, k1] 9 times, yo (19 sts).
• Row 17: [Yo, k1] 19 times, yo (39 sts).
• Row 29: *Yo, k1, repeat from * (78 sts).