Pocket Player's Handbook

I noticed in my glance at this product in the store that there is a problem with the cost for point buy.
The cost listed is 1 point per increase up to 14, and then two points per increase after 14.
It doesn't say that after 16 it's 3 points per increase, and I suppose after 18 would be 4 points, etc...
As such, it's not the same as the point buy cost detailed in other D20 core books, but otherwise...