Grains

export const square = (num) => {

if(num<=0 || num > 64) throw new Error('square must be between 1 and 64');

return 2n**BigInt(num-1);

};

​

export const total = () => {

let result = 0n;

for(let i=0; i<64; i++){

result += 2n\*\*BigInt(i);

}

return result;

};