Please provide me with the context or the type of calculation you'd like me to perform with "1 4 20 x 4". Is this:
- A mathematical expression? If so, how should the spaces be interpreted? Is it (1420) x 4, or 1 x 4 x 20 x 4, or something else?
- A code or cipher? If so, what kind of code is it?
- Something else entirely?
Once I understand what you're asking, I can provide a helpful and accurate response.