Figure out the pattern, and write the next number. 2,6,21,88

Question

Figure out the pattern, and write the next number.
2,6,21,88

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Thiên Thanh 3 years 2021-07-20T11:00:41+00:00 1 Answers 13 views 0

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  1. Dulcie
    0
    2021-07-20T11:02:26+00:00
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    Answer:
    a5=445

    Explanation:
    a of n=(a+1)*n
    a1=2
    I found the pattern to add 1 to the previous number and then multiply it by its number in the sequence. Apologies for the terrible format of my recursive formula.
    Proof of pattern:
    (2+1)*2=6
    (6+1)*3=21
    (21+1)*4=88
    a5=(88+1)*5=445

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