应为Sn=g(1)+g(2)+g(4)+……+g(2^n)否则不满足g(2m)=g(m)g(1)=1g(2)=1g(4)=1g(8)=1……g(2^n)=1S1=1S2=2S3=3……Sn=n
s1=g(1)+g(2)=1+1=2s2=g(1)+g(2)+g(3)+g(4)=1+1+3+1=6s3=g(1)+g(2)+g(3)+。。。+g(8)=1+1+3+...+1=12