I used two size 4 DPN needles and Red Heart Worseted Black Yarn (size 4).
 
Cast on 1 stitch
Row 1-2: Knit
Row 3: Increase by 1 (kfb)
Row 4: Knit
Row 5: Increase by 1 (kfb)
Row 6-7: Knit
Row 8: Increase by 2 (kfb)
Row 9: Increase by 1 (kfb)
Row 10: Knit
Row 11: Increase by 1 (kfb)
Row 12-13: Knit
Row 14: Increase by 1 (kfb)
Row 15: Knit
Row 16: Decrease by 1 (k2tog)
Row 17-18: Knit
Row 19: Decrease by 1 (k2tog)
Row 20: Knit
Row 21: Decrease by 1 (k2tog)
Row 22: Decrease by 2 (k2tog)
Row 23: Knit
Row 24: Increase by 2 (kfb)
Row 25: Increase by 1 (kfb)
Row 26: Knit
Row 27: Increase by 1 (kfb)
Row 28-29: Knit
Row 30: Increase by 1 (kfb)
Row 31: Knit
Row 32: Decrease by 1 (k2tog)
Row 33-34: Knit
Row 35: Decrease by 1 (k2tog)
Row 36: Knit
Row 37: Decrease by 1 (k2tog)
Row 38: Decrease by 2 (k2tog)
Row 39-40: Knit
Row 41: Decrease by 1 (k2tog)
Row 42: Knit
Row 43: Decrease by 1 (k2tog)
Row 44: Knit
Row 45: Decrease by 1 (k2tog)
Row 46: Knit

I used two size 4 DPN needles and Red Heart Worseted Black Yarn (size 4).

 

Cast on 1 stitch

Row 1-2: Knit

Row 3: Increase by 1 (kfb)

Row 4: Knit

Row 5: Increase by 1 (kfb)

Row 6-7: Knit

Row 8: Increase by 2 (kfb)

Row 9: Increase by 1 (kfb)

Row 10: Knit

Row 11: Increase by 1 (kfb)

Row 12-13: Knit

Row 14: Increase by 1 (kfb)

Row 15: Knit

Row 16: Decrease by 1 (k2tog)

Row 17-18: Knit

Row 19: Decrease by 1 (k2tog)

Row 20: Knit

Row 21: Decrease by 1 (k2tog)

Row 22: Decrease by 2 (k2tog)

Row 23: Knit

Row 24: Increase by 2 (kfb)

Row 25: Increase by 1 (kfb)

Row 26: Knit

Row 27: Increase by 1 (kfb)

Row 28-29: Knit

Row 30: Increase by 1 (kfb)

Row 31: Knit

Row 32: Decrease by 1 (k2tog)

Row 33-34: Knit

Row 35: Decrease by 1 (k2tog)

Row 36: Knit

Row 37: Decrease by 1 (k2tog)

Row 38: Decrease by 2 (k2tog)

Row 39-40: Knit

Row 41: Decrease by 1 (k2tog)

Row 42: Knit

Row 43: Decrease by 1 (k2tog)

Row 44: Knit

Row 45: Decrease by 1 (k2tog)

Row 46: Knit