规律:N的三次方1.8.27.67.125.216
(1) (8) ( 27 ) ( 64 )(125) ( 216 )1×1×1=1 2×2×2=8 3×3×3=274×4×4=64 5×5×5=125 6×6×6=216
1,8,27 ,(54 ),125,(216 )1^3,2^3,3^3,4^3,5^3,6^3
1^3=1, 2^3=8, 3^3=27, 4^3=64, 5^3=125
N^3