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Collatz Sequence Stepper

Generate a bounded Collatz trajectory with exact values and an explicit reached-one or step-budget result.

Positive decimal integer, Finite step budget

collatz-sequence.json

Browser only

Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.

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How to use this tool

  • Enter the admitted input using Start integer, Maximum transformations.
  • Use the explicit mode and declared finite options. Only selected operation fields participate.
  • Select Generate Collatz sequence and download collatz-sequence.json.

Examples

Start6 reaches1 after8 transformations:6,3,10,5,16,8,4,2,1.

Limitations

  • At most100 decimal start digits,10,000 transformations,10,001 attained values and512 digits per intermediate;8 MiB report and30-second processing limit.
  • A step-budget stop is incomplete; no conjecture proof, universal termination or unbounded full-sequence promise.

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