4 9 25 64 144 ()
A.196
B.225
C.256
D.289
:1,4,16,49,121,()。A.256B.225C.196D.169
1,4,16,49,121,()。A.256B.225C.196D.169
1,4,11,30,85,() A.248B.250C.256D.260
1,2,8,28,100,() A.196B.248C.324D.356
100,20,2,2/15,1/150,()。 A.1/3750B.1/225C.3D.1/500
1,4,11,30,85,()A.248B.250 C.256D.260