One question of the output tensor of yolo.

[XiangqianMa]

Dear author! I want to know how can i get this number. According to the way in yolo's paper, the output tensor of yolo could be [7x7x(2x5+20)], thus [7x7x30], but i found the output of your code is 7x7x25. So i want to know is there any different?(Forgive for my grammar errors, I am not a native English speaker.）