Denote and notice that the sum of the first Fibonacci numbers Then calculate as follows. We start by noticing that
Additionally, there is the Binet formula implying that which pinpoints to be almost precisely Of course,
However, and .
Since but , it isn’t surprising that for ANY large enough we have while Therefore, after having cut off the first numbers in step, we cut off the following numbers via the th step.
Explanation of the phenomenon
Denote and notice that the sum of the first Fibonacci numbers Then calculate as follows. We start by noticing that
which pinpoints to be almost precisely Of course,
and
.
but , it isn’t surprising that for ANY large enough we have while Therefore, after having cut off the first numbers in step, we cut off the following numbers via the th step.
Additionally, there is the Binet formula implying that
However,
Since