What will come at the place of question mark (?) 1, 2, 6, 21, 88, ?

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Accepted Answer

1. Notice each term is "previous × n + n" with n = 1,2,3,4.

2. Check: $1	imes1+1=2$, $2	imes2+2=6$, $6	imes3+3=21$, $21	imes4+4=88$.

3. Apply for next: $88	imes5+5=440+5=445$.

4. So the missing number is **445**.

FINAL_ANSWER: <d>

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Answer

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