Well yeah, these cards do the same. They start from 50-30, then lower down to 20-1. Most of the time you'll start from 40, but sometimes 30. If you get 40, you may get another 40. But if not, you can get a card or two from the 30s. The same goes for if you start with a 30. Then, we go to the 20s. You either get 1 or two, same goes for the lower ones. However, there are chances that the cards will skip an entire 10's number. An example would be: If you got a 40's card, it may just jump over to 20's, completely missing the 30's.
I hope you find Vivian someday. I found Raddle and Ketchup in my only pack I got. (Toys R Us had only one left, and Best Buy sold out and Gamestop had 10 of them, but there's this one employee that said we don't have them, but there's this other employee that said they do. The Manager I believe, was so lazy, that he wouldn't even help me to look. I mean, if he did and not be lazy i'd gotten more. But NOOO! No wonder everyone hates Gamestop...)
Whoa, sorry for that rant. But again, good luck finding Vivian.