Just to add my 5¢, I agree with the great answers above that suggest an Open Source license such as BSD might be what you want.

However, if you want to be as far as possible from copyleft (which might be a wrong choice), then there is a "license" that suits your goal well. The strongest "anti-copyleft" is called **all rights reserved**: a proprietary, traditional copyright.

No one can stop you from redistributing your proprietary source code publicly, if you wish to. You can still redistribute binaries and charge money. You can even sub-license the sources to some commercial companies under even more convoluted terms. 

But, your software wouldn't be Open Source. No Open Source distribution would include you code, neither source, nor binary. Are you okay with that?

You might get into mixed distros, like nVidia drivers years ago were. There was a binary blob with no source code, and people used it anyway, because everybody loved to use their accelerated OpenGL. But to pull this off your program needs to solve a very special problem, extremely well.

Mostly, such behaviour provokes a rewrite from scratch under GPL. Think about the [GNU userland][1], for example.

 [1]: https://www.gnu.org/gnu/initial-announcement.en.html