Dude... That is not safe, at all. As Elvis said, there are no batteries, especially 18650's, that can safely handle what you are currently building at. Please stop and educate yourself on battery safety and ohms law.
I suggest that you buy a regulated box mod. I've seen some pretty insane clouds at 1.4Ω and 30W, and you're much safer.
Here's an excellent source of information by our resident battery expert, Baditude:
E-Cigarette Forum - Baditude - Blogs