Yes, there where some \e missing, I don't know whether my error in transmition or maybe some database update in the last 9 years.

@roblogic: In my opinion, negative results are not acceptable, but with a halting condition like for((a=1;b+=a;a+=b)){ echo $a $b;}|head -n46 your code is still 4 characters shorter than mine (improved one) - so why don't you publish your solution as an answer, or did you?

@F.Hauri: My improved solution is only 1 char longer than yours, with preserving the line oriented output, while your solution doesn't reach the max possible value before integer overrun.

@MilkyWay90: I understand it this way:var o=System.out; o.println(foo);o.println(bar);