Rank these time bounds in increasing order of growth:

(0) 2

(1) n^n

(2) n \log n

(3) 1

(4) 2^{\log n}

(5) n^3

(6) 3^n

(7) \sqrt{n}

(8) \log n^2

(9) (2n)^n

(10) n^{\log n}

(11) 4^n

(12) n^2 \log n

(13) n^{2.5}

(14) \log \log n

(15) 2^{2n}