User blog comment:Alejandro Magno/My function is faster growing! (my style)/@comment-1605058-20140928135321/@comment-5029411-20140928152553

X'^'(n) = (n+1)+n{n}n

X'^'^(n) = (n*2)+n{n}n

X'^^(n) = (n^2)+n{n}n