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Math Reading Science Test Prep

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    RATS Sequence

    Sequence description

    Reverse Add Then Sort the digits in the previous term

    Sequence terms

    1, 2, 4, 8, 16, 77, 145, 668, 1345, 6677, 13444, 55778, 133345, 666677, ...

    Table program

    NestWhileList[FromDigits[Sort[IntegerDigits[# + FromDigits[Reverse[IntegerDigits[#]]]]]] &, 1, UnsameQ, All, n]

    Plot

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