When n is a positive integer, the function n & nbsp; (n) is defined to represent the largest odd factor of N. for example, n & nbsp; (3) = 3, n & nbsp; (10) = 5 Let s (n) = n (1) + n (2) + n (3) + +Then (1) s (4) = n (2n)___ .(2)S(n)= ___ .

When n is a positive integer, the function n & nbsp; (n) is defined to represent the largest odd factor of N. for example, n & nbsp; (3) = 3, n & nbsp; (10) = 5 Let s (n) = n (1) + n (2) + n (3) + +Then (1) s (4) = n (2n)___ .(2)S(n)= ___ .


(1) As we know, n (2n) = n (n), n (2n-1) = 2N-1. S (4) = [n (1) + n (3) + n (5) + +N(15)]+[N(2)+N(4)+N(6)+… +N(16)]=[1+3+5+… +15]+[N(2)+N(4)+N(6)+… +N(16)]=43+S(3)=43+42+S(2)=43+42+4...