#J, 15
J, 15
2 + 1
* 3 *
2 + 3
This outputs only valid numbers, but a lot are duplicates. The unique values are 17 11 16 28 31 23 13 10 21 33 18 24 22 29 27. You can definitely do better by changing operators and the integers involved.
2+1*3*2+3 -> 17
2+1*3+3*2 -> 11
2+1*3+2*3 -> 11
2+3*2+3*1 -> 17
2*3+1*3+2 -> 16
2*2+3+1*3 -> 16
2*2+3*1+3 -> 28
2*2+3*3+1 -> 28
1+2*3*3+2 -> 31
1+2*2+3*3 -> 23
1+2*2+3*3 -> 23
1*3+2*2+3 -> 13
1*3+3+2*2 -> 10
1*3+2*2+3 -> 13
3*2+1*3+2 -> 21
3*1+2*2+3 -> 33
3+2*2+1*3 -> 13
3+3*1+2*2 -> 18
2*2+1*3+3 -> 16
2+3*2+1*3 -> 17
3+2*3*1+2 -> 21
2*3+3*1+2 -> 24
3*2+3*1+2 -> 33
1*3+2*3+2 -> 13
2+3*1+3*2 -> 23
3*1+3+2*2 -> 24
3+1*3+2*2 -> 10
1+3*3+2*2 -> 22
2+3*3*2+1 -> 29
3*3+2*2+1 -> 27
3*3+2*2+1 -> 27
3+2*2+3*1 -> 13
2*2+3+3*1 -> 16
3+2*2+3*1 -> 13
2+3*1+2*3 -> 23
3+2*2+1*3 -> 13
3*1+2*2+3 -> 33
2*2+1*3+3 -> 16
3+3*1+2*2 -> 18
3*1+2*3+2 -> 33
