As usual, $5 via paypal to the person who cracks it.
This code requires a key, but if you think about the numbers you may just be able to figure out what it is. The middle number specifically may be helpful to some. Also, the dash is simply a separator, not an operation or symbol of any kind.
73-2-7 140-1-2 18-13-4 27-1-9 71-13-3 20-4-7