Problem 53930. Easy Sequences 65: Fractional Part of Square Roots
The fractional part function of a positive real number r, denoted as
, is defined as:
, where
, is the 'floor' of r. Thus,
,
and
.
Given a positive integer n, create the function
, that evaluates the following summation:
For example for
:
Please present the function output rounded-off to nearest integer. Therefore, for
, the function should return 3.
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