It's 2 boi
http://www.math.harvard.edu/~knill/teaching/math21a2011/21a_fall_2011.pdf
it is 190
That would be 238. xD
The answer is 2
666 /_\
-(u(n-2)*u(n+2))-(u(n-1)*u(n+1))
The answer is 60
0.5454545454545454...
