1, 2, 6, 21, 88, _

1, 2, 6, 21, 88, __?

Question Posted / amit

Answers were Sorted based on User's Feedback

1, 2, 6, 21, 88, __?..

Answer / kaarthik

1
2=(1+1)1
6=(2+1)2
21=(6+1)3
88=(21+1)4
So 445=(88+1)5
& 2676=(445+1)6

Simple logic :-)

Is This Answer Correct ?

166 Yes

12 No

1, 2, 6, 21, 88, __?..

Answer / ummid salma

(x*i+i)
1*1+1=2,
2*2+2=6,
6*3+3=21,
21*4+4=88,
88*5+5=445,
445*6+6=2676.

1,2,6,21,88,445,2676.

Is This Answer Correct ?

99 Yes

7 No

1, 2, 6, 21, 88, __?..

Answer / arupananda

ans 445
(1+1)=2*1=2
(1+2)=3*2=6
(1+6)=7*3=21
(1+21)=22*4=88
(1+88)=89*5=445

Is This Answer Correct ?

35 Yes

5 No

1, 2, 6, 21, 88, __?..

Answer / kavitha s

Column Logic Answer
1 1 1
2 =(1*2)-(1-1) 2
3 =(2*3)-(2-2) 6
4 =(6*4)-(6-3) 21
5 =(21*5)-(21-4) 88
6 =(88*6)-(88-5) 445

Is This Answer Correct ?

33 Yes

8 No

1, 2, 6, 21, 88, __?..

Answer / somnath chougole

2×2=4+2=6
6×3=18+4=21
21×4=84+4=88
88×5=440+5=445
445×6=2670+6=2676

Is This Answer Correct ?

6 Yes

2 No

1, 2, 6, 21, 88, __?..

Answer / hitarth patel

154

Is This Answer Correct ?

3 Yes

8 No