COLLATZY

This tool is also available as a RESTful service. Make a get request to /path and apply any of the following parameters:
  • num - The starting number. Defaults to 12.
  • d - The number to divide by when a multiple of d. Defaults to 2.
  • m - The number to multiply by when not multiple of d. Defaults to 3.
  • p - The number to add after multiplying by m. Defaults to 1.
  • report - specify "verbose" for readable report or "json" for json-formatted report. Defaults to verbose.
For example /path?num=12&d=2&m=3&p=1&report=verbose
Each query is limited to exploring 100 new nodes. But if part or all of the path has been previously explored the path you get back could be much longer.