中间【3²】漏顶了+1吧2x(3+1)x(3²+1)x(3⁴+1)x(3^8+1)=(3-1)x(3+1)x(3²+1)x(3⁴+1)x(3^8+1)=(3²-1)x(3²+1)x(3⁴+1)x(3^8+1)=(3⁴-1)x(3⁴+1)x(3^8+1)=(3^8-1)x(3...