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(3^8+1)
=3^16-1
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(3^8+1)
=3^16-1