公务员数列题目42 .1 ,3,4,1,9,( ) A .5 B .11 C .14 D .64 43 .0 ,9,26,65,124,( ) A .165 B .193 C .217 D .239 44 .0 ,4,16,40,80,( ) A .160 B .128 C .136 D .140 45 .0 ,2,10,30,( ) A .68 B .74 C .60 D .70 请把具体的解题步骤写清楚.

问题描述:

公务员数列题目
42 .1 ,3,4,1,9,( )
A .5 B .11 C .14 D .64
43 .0 ,9,26,65,124,( )
A .165 B .193 C .217 D .239
44 .0 ,4,16,40,80,( )
A .160 B .128 C .136 D .140
45 .0 ,2,10,30,( )
A .68 B .74 C .60 D .70
请把具体的解题步骤写清楚.

42:d
(3-1)*(3-1)=4
(4-3)*(4-3)=1
(1-4)*(1-4)=9
(9-1)*(9-1)=64
43:c
0=1*1*1-1
9=2*2*2+1
26=3*3*3-1
65=4*4*4+1
124=5*5*5-1
217=6*6*6+1
44:d
3级等差数列
0 4 16 40 80 140
4 12 24 40 60
8 12 16 20
45:a
0 2 10 30 68
2 8 20 38
6 12 18