Hi, I have to distribute reward after every 10 block mined, initial reward started at 21000 and decay rate is 0.2!
I think my logic is failing where I'm doing multiply operation in distrbutionAmount. Can anybody think of it where I went wrong? if you want I can give my math as well. Rescue me frowning

if (block.number - checkpoint >= 10) {
uint256 rewardAfterInterval =
(block.number - checkpoint).div(10);
uint256 denominator = 10**(rewardAfterInterval - 1);
uint256 distributionAmount =
(21000.mul(2)**(rewardAfterInterval - 1)).div(
denominator
);
}

Basically I want to know how can I code (reward*(A^b))/c ?