Ah hahahaaa! That's hilarious. It's like everything with the number 4 in China. No 4th floors on most buildings. Infact, there's not even a 14th floor many times. It's like 13, 13A. So while 13 is super unlucky elsewhere the Chinese will have two 13s!
So no seat recommendations based on the seat map? I think I'll choose choose two middle seats in row 17 or row 16. I believe the seats around them are empty so should be peaceful enough.