Earlier quoted context omitted.
I've made a good living as a programmer for a decade now, and I'm not afraid to say I don't even understand the question. It's a silly question unless it's for a quantitative role.
Edit: Redacted: left for consistency. Had him confused there. A closed form expression is basically just a mathematical function used to model a potentially infinite series. Take a look here: http://en.wikipedia.org/wiki/Closed-form_expression Look at the first and second examples. You'll see the big summation sign (for loop: i to infinite) and then an explicit function. If you want to think, what the heck is this ma…
There was no information whatsoever about what changes on each iteration... if nothing changes then the answer would be a constant of whatever rabbits were at the beginning... and that doesn't sound about right :/