Hi bkarpuz,

thank you for what looks like a wonderful answer. The only problem is that I do not understand it. First of all, some of the notation is giving me problems.

You first denote the sequence by

.

I think

.

You then write

. I have not seen this notation before, with the

sign and everything, but from the way

is defined in the problem, I'm assuming that it means

?

Again, thanks for taking the time to write out all that good stuff. I just hope it isn't wasted on me. Will try to understand it!