n^n^n

[Hans Havermann]

> %I A002488 M5031 N2171
> %S A002488 1,16,7625597484987,
> %T A002488  
> 13407807929942597099574024998205846127479365820592393377723561443721764 
> 0300735469768018742981669034276900318\
>   58186486050853753882811946569946433649006084096
> %N A002488 n^(n^n).

I've put the next 4 values at:

http://odo.ca/~haha/j/seq/n%5en%5en/

What I was really going for is 9^9^9. I didn't have enough memory to  
compute the number outright (in Mathematica) so I'm trying to do it in  
halves. Not sure I'll succeed: been running several days now on the  
first half.

10^10^10 is utterly hopeless. ;)