If the object is to set up a pattern test then set it up a column of single numbers, there is no need to lie about simple math.
The test separates leaders from followers. 97% feel obligated to answer 34 and 45 even though it’s factually wrong AND 34 and 45 are in the 97%.
This is more a study in human psychology than anything else. 97% insist on answering 5+8 wrong - no wonder why the world is so screwed up.
The more honest question rather than the ? mark on the last equation would be, “Given the projection of the trend in the first three equations, what is the answer for the fourth?”
The 97% will get it wrong statement is key. Nobody believes that 97% of the population doesn't know what 8+5 equals. So they figure it's a trick question and try to see a hidden answer. But that's the trick...getting them to not choose the obvious answer.