153680

The largest amount of numbers you can use are 37 because you can add 37 1's to get to 37.The smallest amount of numbers you can use to reach 37 are 7 because if you add 5+7+3+7+5+7+3=37.If you start then you will win because an odd number add an odd number equals an even number but you need an odd number so the third odd number you add equals an odd number.You can't use all the numbers in between the largest and the smallest number because you can't use 9 3s,5s,1s or 7s to get to 37.