It won't work based on your assumption and permutation. If you are lucky, it will only work 3-4 levels deep and after that the difficulty would increase against your favor. This is like martingale system in gambling.
. And you can't really double your money unless you are very very lucky to invest on a ICO that will gave you that amount in short amount of time.
Do you think this can work?
How would be your plan?
The chances of this permutation working is 50-50 ! Factoring in the fact that some ICOs can disappoint you and make you lose your funds, in the case of hacked website and/or accounts or just the project executive team running away with the money gathered at ICO with some lame excuses.
Exactly, there's still a chance that you can invest on a ICO can will take off with your funds. There's are hundreds of reasons to earn and become millionaires from ICO but it will take amount of money + risk + luck. Better just to hold on your coins long term that investing on ICO this way.