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Apurba
Apurba asked in Science & MathematicsMathematics · 3 weeks ago

The next term in the series 2,7,28,63,126, __?

The answer is 215. But I am getting 245. Could you please show me how it's 215?

3 Answers

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  • ?
    Lv 7
    3 weeks ago

    {2, 7, 28, 63, ...}

    Possible sequence identification:

    OEIS A123363

    Continuation:

    -1, 2, 7, 28, 63, 126, 215, 344, 511, 730, 999, 1332, 1727, 2198, ...

  • rotchm
    Lv 7
    3 weeks ago

    How did you get 245? (because its a valid answer too)

  • Puzzling
    Lv 7
    3 weeks ago

    Asked and answered.

    The terms alternate between n³+1 and n³-1.

    Source(s): https://answers.yahoo.com/question/index?qid=20210...
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