NEMA 14-50, 14-30, or \_\_\_ ?

I do NOT mean Juicebox or wall charger. I mean the cable that COMES WITH THE LEAF for 240v charging.

(I have googled this like crazy without clear results, and even the local Nissan dealership could not tell me.)

I do not have the car, my friend does and I am wiring an outlet for her.