How to compute a product just for the even numbers? The multiplication must be computed for i being 0, 2, 4, 6, 8, 10, so on until 60, 62 and 64 and not for all the i from 0 to 64 as in example... How the input should be look like? I tried something as " where i is even", "even(i)" but no success...
Here is example input in W|A:
product (2^i+1), i=0 to 64
