What comes next 7, 9, 13, 29?

1 Answer

  • Taking the differences of the numbers, I see

    2, 4, 16

    which is 2^(2^0), 2^(2^1), 2^(2^2)

    if that is the pattern, then the next difference could be 2^(2^3), which is 256. Making the next number ?.

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