Strange Summation
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First note that x = Floor(x) + {x}, where {} is the remainder.
So if x= 2.74, then the floor is 2 + the remainder is .74 .
f(x)= { 0 if x its a perfect square (like 1,4,9,...)
{ Floor (1/ {sqrt(x)}) otherwise
So for the otherwise part, say x=2, you have 1/the remainder of sqrt(2), which is 1/.414 = 2.4, then take the floor. So x=2 is 2.
Find: f(1) + f(2) + f(3) + .... + f(256)
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